Crimson Cranium Capable Crusaders: Primus & Brainwave Junior

Primus was born Pren of the noble family from the planet Euphroix, developing telepathic and telekinetic abilities. As a potential future king, Pren trained alongside the Warlords of Okaara in the Vegan star system. Once a young adult, Primus rebelled against his world’s alien masters, the Citadel. 

Henry King Junior was named after his famous father, Doctor Henry King, a renowned psychologist turned supervillain. As the original Brain Wave, Henry Senior used his mutant abilities of illusion casting and Brain blasts in a series of battles versus the Justice Society of America. After decades of defeat, leading to incarceration for long periods of time, King was separated from his son. 

Taking inspiration from the name Primus, Pren led a group of fellow rebels from various Vegan worlds know as the Omega Men*. For a time, they took refuge on Earth-One, where they met the Green Lantern named Hal Jordan, the New Teen Titans and Superman. After a series of adventures, they realized they were needed back in the Vegan system. Eventually, they returned there to free its oppressed worlds from the Citadel, and later the insidious Spider-Guild.

Henry Junior had himself developed telepathic and telekinetic abilities, and used these as a founding member of Infinty, Inc. Allied with the children and heirs of Earth-Two's greatest superheroes, King and his new friends brought about the defeat of Ultra-Humanite and his Secret Society of Supervillians, including Brain Wave. Brainwave Junior and his teammates aided Green Lantern, Superman and the All-Star Squadron, both in the past and the present.

Prem formed a romantic bond with alien queen Kalista of Euphroix. Yet despite both being part of the Omega Men, their conflicting duties led to them spending periods of time apart, causing strain on their union.

Henry formed a romantic bond with fellow Infinitor Jennie Lynn "Jade" Hayden, at least for a brief period.  However, the after effects of a mind-meld with his dying father led to Henry gradually losing his sanity, ending his relationship with Jennie

Henry Junior never met the Earth-Two counterpart to Kalista. His girlfriend Jennie's doppleganger was the Green Lantern of Space Sector 2815, and a frequent partner to Earth-One's Hal Jordan.

Just as Kalista experience tragedy with her parent's death, which led to her reigning as her world's sovereign, so too had the woman who became known as Miss Fear experienced loss. The daughter of a slain leader from a central Asian country, Fear used her considerable skills to promote dread within her opponents, psychologically unnerving them. She carried an affection for the aviator known as Blackhawk, which he did not recipriocate during their multiple encounters during the mid to late 1940s.

Kalista likewise had the power to project fear in her foes through illusions, although she radiated love for Pren throughout the years. Her power was similars to Jade’s twin brother Todd “Obsidian” Rice.

* The Omega Men's counterparts remained secluded below the surface of Earth-Two, as the Sub-Men, who eventually became pawns used by the Ultra-Humanite against Brain Wave Junior and the All-Star Squadron.

Green Gal Guardians: Arisia and Jennie

Arisia Rhab and Jennie Lynn Hayden were spunky teenagers charged with caring out their heroic legacies... the legacies of the Green Lantern.

Arisia Rhab of the planet Graxos IV succeeded her father Fentara and her uncle as the Green Lantern of  Sector 2815, which was next to Sector 2814 wherein Earth-One's Green Lantern, Hal Jordan, resided. After several missions alongside one another as members of the Green Lantern Corps, Hal and Arisia culminated their attraction for one another when she moved to his world to work alongside him as heroes there in a localized Green Lantern Corp.

Jennie Lynn Hayden was the daughter of Alan Scott, the golden age Green Lantern of Earth-Two. Due to genetic mutations from her father's exposure to the emerald energies of his power battery, both she and her twin brother Todd "Obsidian" Rice gained light and dark based powers, respectively. Adopting the alias of Jade, Jennie along with Todd and other second generation heroes tried to solicit membership into the Justice Society, and when their initial application to join was rejected, they instead formed the teen team of Infinity, Inc.

Scarlet Super Strong Studs aka Big Bear and Nuklon

These two red headed powerhouses were the cornerstones of their respective teams of teen titans. Both are expert pilots with a style for their respective ages of introduction to pop culture of the 1970's and 1980's, as seen by their distinctive hair styles.

Big Bear was one of the young champions of the alien city of Super Town hovering over planet New Genesis. Along with four other youths known as the Forever People, he used his super strength and ability to increase his density and, through his Super Cycle, to phase through objects. Traveling to Earth-One, the team defended it and the universe from Darkseid's machinations throughout the past and present. Later, they'd leave their adopted home for another world.

Nuklon aka Albert Rothstein was a founding member of Infinity, Inc., and sought to live up to the mantle of his god father the Atom of Earth-Two. Utilizing his super strength and ability to increase and decrease his density to become near invulnerable and to phase through objects. His team banded together to defeat the plots of Ultra-Humanite both in the past and the present. He and his allies would remain as the next generation of his planet's protectors.

Disguised Dudes Determined to Deal Decisively against Drugs

Jason Hart and Rick Tyler were both young men with very good intentions. When they saw crime infest their communities and innocents needing to be defended, they adopted their alter egos as Protector and Hourman, respectively. Even their choice in costume colors were similar. But there was a stark divide between the two costumed crusaders.

Jason was a youth who saw the effects the drug addiction had on his younger cousin Tim, and recalling that Tim's idolized superheroes like Nightwing/Robin, Hart adopted the alter ego of the Protector. Using his natural athletic ability, Jason was able to deal punishment toward the dealers stalking on the community. This led to Protector becoming trained by his role model and becoming an honorary member of Nightwing's Teen Titans of Earth-One.

Rick saw the affliction of his friend and love interest Beth Chapel during the Crisis on Infinite Earths, and the chaos resulting from the unfolding disaster. Adopting a alter ego and ingesting the addictive Miraclo pills that his father Rex created for his costumed crusade as the Hourman, Rick likewise assuming the identity. Gaining the strength and speed of five men, as the second Hourman, Rick and Beth... aka Doctor Midnight... became members of Infinity, Inc. of Earth-Two. However, the effects of his drug addiction took a toll on Rick when he would take more than one to increase his power, leading to his decision making becoming dangerous. Thankfully, Chapel was able to wean him off Miraclo and Tyler became a part time hero under a more moderate dosage of the pill.

Colorful Costumed Crusaders: Legacies of the Green Lantern of Two Earths

John Stewart of Earth-One and Todd Rice of Earth-Two were the legacies to the legends that were the Green Lanterns of their respective worlds, assuming similarly colorful alter egos while harnessing power over light. 

John Stewart was an aspiring engineer who had untapped potential as a superhero. Appointed the backup Green Lantern of Sector 2814 when Jordan's original backup Guy Gardner had been laid up with an injury. Reluctantly, John repeatedly filled in for Hal Jordan using his ring and power battery, even becoming a supporting member of the Justice League. Eventually, he was made the new Lantern when Hal retired, leading to Stewart into accepting the role full-time which he had previously only handled on an occasion basis when Jordan was incapacitated.

It would be during the period just prior to the Crisis on Infinite Earths that John was trained by another Green Lantern from a different space sector. This Lantern in Katma Tui was more than a trainer as she later became his wife.

Todd Rice was one of the twins sired by Alan Scott aka Earth-Two’s sole Green Lantern. Left orphans by their mother Rose Canton whose sinister alter ego of Thorn was attempting to slay the pair, Todd was raised by the Rice family until his young adulthood when his inherited powers from his father’s extended exposure to his power ring were revealed.

While Todd’s twin sister Jennie-Lynn Hayden had powers similar to her father’s, Todd had the inverse abilities of transforming into a shadow. As Obsidian, Todd joined his sister Jade in becoming members of Infinity, Inc. alongside other offspring of the Justice Society of America. Their father now became aware of their existence and began to form a relationship with his children.

Boy Sidekicks for Teams of Justice

Lucas Carr was born and raised in the ocean side town of Happy Harbor, where the alien invader Starro launched his conquest of  Earth-One from. Thanks to the lad's accidental discovery of the alien's weakness, lime, the Justice League of America defeated the villain and made Carr an honorary member. He was given a flying hot rod designed by the League, and over the years Snapper proved valuable more than once in assisting his teammates.

Sylvester Pemberton was the child heir to his father's fortune when he became inspired to adopt a stellar uniform and alter ego. When he was joined by his future chauffeur Pat Dugan, the pair became the dynamic duo known as Star-Spangled Kid and Stripesy. Dugan designed for them their flying car, the Star Rocket Racer. Soon after, they were both charter members of the Seven Soldiers of Victory.

Snapper fell into some bad association, first duped by a disguised Joker into revealing the JLA's cave headquarters and later assisting the Key in developing the villain Star-Tsar, Using stellar based technology, Snapper as Star-Tsar was a recurring adversary of the League, although his ultimate intention was to supplant the schemes of Key and another rogue named Mark Shaw, which with the League he was able to accomplish. Snapper eventually reconciled with the team once more.

Star-Spangled Kid was eventually liberated with fellow Soldiers from ancient eras they had been exiled, returning to the 20th century where he was given Starman's Cosmic Rod to embark on a new career, joining the Justice Society of America. He created a Cosmic Converter Belt that gave him star-based powers similar to technology created by Earth-One's Evil Star. Syl eventually created a new persona as Skyman with his new team, Infinity Inc. which operated out of Stellar Studios, once owned by Guy Pompton aka Earth-Two's Evil-Star.

Star-Tsar would later be revived by a coworker of Snapper, who stole Carr’s super-suit to use for his own crimes, before this new Tsar was defeated by Green Arrow. Around the same time, Stripesy’s counterpart on Snapper’s Earth, Leonid Kosar, became the Soviet Union’s sole superhero Starfire and later Red Star, Kosar and Carr never had opportunity to meet as had Dugan and Pemberton, although another stellar sentinel on the second Star-Tsar/Key.

Animal Avengers Attack Antagonists Aggressively

Mari McCabe and Yolanda Montez were women granted cat-like abilities, allowing them to combat injustice within their own families. As Earth-One's Vixen and Earth-Two's Wildcat, these feline furies gained notoriety during the Crisis on Infinite Earths, fighting alongside their world's greatest superheroes.

Mari was a resident of the African nation of Zambesi until first her mother and then her father perished, with her uncle the wicked General Maksai pursuing her as he had her family to gain possession of her Tantu Totem, which would bequeath the powers of animals to its possessor. Immigrating to America, she had a career as a fashion model and an alter ego as the superheroine known as Vixen.

Yolanda's family originated in Mexico and she was the victim of treatments performed on her mother while she was pregnant with her by the evil Doctor Love. The daughter of "Mauler" Montez, a famed wrestler, Yolanda became the god-daughter of Ted "Wildcat" Grant. When she developed her abilities and saw Grant immobilized saving innocents, she was motivated to adopt his alter ego as the new Wildcat. Juggling her costumed career with her secular one as a fashion photo journalist.

In Mari's case, after two adventures alongside Earth-One's Superman, she became a member of the Justice League in Detroit.  In this incarnation of the League, she proved herself a stabilizing influence for the predominantly younger team, and earned the respect of its seasoned veterans.

In Yolanda's case, she was quickly invited into Infinity, Inc. which were the second generation proteges of the Justice Society, There she had a lengthy stint alongside her teammates, developing a romance with fellow Infinitor Nuklon and friendships with the rest.

While Vixen could access all types of animal powers, Wildcat was limited to those of a cat. Vixen would find a foe in General Maksai who transformed into a ox-man while Wildcat would face her mutated cousin Carcharo the shark-man. Both ladies would triumph over their kinfolk.

Black-and-Yellow Battling Bravehearts

This comparison should be obvious. Two heroines of African-American origin, with genius intellect, devise equipment that allow them to join teenage teams while in love with a member of each group. And then their is the fashion sensibilities. We introduce Bumbleee aka Karen Beecher and Doctor Midnight aka Dr. Beth Chapel for your consideration

• A black and gold stylized outfit complete with specialized googles.
•  Weaponry that can disarm opponents in the form of stingers and blackout bombs.
• The aforementioned teams: Teen Titans and Infinity, Inc. welcomed them with open arms.
• The also aforementioned boyfriends Mal "Guardian" Duncan and Rick "Hourman" Tyler.
• Their careers were brief and then they soon retired.
• Given there were differences, one could fly and one could see in the dark, regardless...

Brainy Mutants Opposing Secret Societies

Adam Blake and Henry King Junior inherited immense brain power, far beyond those of their fellow man in the 20th century. While Adam's true counterpart on Earth-Two was Lance Gallant aka Captain Triumph, and Henry's counterpart on Earth-One was the Omega Man named Primus, there were several points of similarity between today's two featured heroes. Inspired to assist others by adopting costumed aliases, Adam's Captain Comet and Henry's Brain Wave Junior, had adventures that spanned decades. Each had the requisite power-set of telepathy and telekinesis that all mental masterminds possess, as well as other distinct abilities. Both favoring the red and blue color-scheme, each made reputations for himself by courageously combating the Secret Society of Super-Villains and a particular pair of super-smart simians that would cause them considerable angst. And each fell two ladies tied the Green Lantern mythos, as Adam caught the eye of flight attendant Deborah Darnell (aka Star Sapphire) who would soon become his most consistent foe, and Henry grew to love Green Lantern Alan Scott's daughter Jennie Hayden (aka Jade). Both romances were doomed to failure, due to Sapphire's evil disposition and Junior's confusion after being mental "transfused" with the brain of his father upon the latter's death. 

Henry King Junior himself used the mental powers inherited from his wicked father Henry King Senior, aka the original Brain Wave. Capable of projecting mental blasts, levitating himself and other objects, and creating realistic illusions. Early in his career, Junior attempted to enlist the membership of the Justice Society of America, with near catastrophic results. Of course, showing up at their headquarters appearing like his father (to earn their respect? attention?) rather than as himself caused an immediate conflict. Regardless, after traveling time Brain Wave Junior recruited other heroes from the 1940's All-Star Squadron, although once more lacking the polish of diplomacy of his fellow heroes.

Adam Blake possessed other abilities beyond those listed above, including a superhuman physique and a photographic memory. After a modest run of forty or so adventures in the 1950's, Captain Comet decided to travel through space for a few decades until returning to Earth and encountering modern day super villains. Mistaking them for friends initially, upon learning of their insidious nature, began attacking this Secret Society instead of heroes like Green Lantern Hal Jordan. Among these was the aforementioned sinister  simians, Earth-One's Gorilla Grodd whom Comet had a couple of mental duels with. This paralleled Junior's own war of the wills versus the modern-day Ultra-Humanite, himself an ape at the apex of atypical genius.

After following the Secret Society throughout the multiverse, Comet was instrumental behind the scenes in aiding the same Justice Society that would later spurn Junior in defeating this first incarnation of the team (of which Junior's father was a member of its second incarnation a few years later). After dispatching this team, and reconciling his own troubled powers thanks to the assistance of Superman, Comet went into semi-retirement until called upon during a Crisis to assist the multiverse once more.

Both Captain Comet and Brainwave Junior were outcasts of the worlds they were born into. Each was bequeathed abilities that set them apart from most of their contemporaries, and this also caused them to have difficulty at times reconciling between good and evil despite their own inherent attributes towards justice and fairplay. While seeking out those on the same side of the law, Junior was a brief member of Infinity Inc and Comet an ally of the Justice League, each ended up withdrawing and becoming very much the loners they were. Legends in their own mind.

Amazing Amazonians Across the Ages

Wonder Woman was the first significant super heroine to appear on the scene, and she wasn't alone among her gender as scores of fabulous females also appeared throughout the Multiverse since December 1941 which Princess Diana arrived in America and reversed her name to Diana Prince. On Earths One and Two, each amazing amazon was nearly identical in powers, in history, in personality. However, there were other Wonder Women in their family, both twins of themselves and blonde bombshells named Hippolyta.

Of course, the mothers of both Diana's was the Amazonian Queens named Hippolyta. While the Hippolyta of Earth-One was blonde and appeared different from her daughter, the Hippolyta of Earth-Two was a brunette with an identical appearance to that of her daughter! In fact, that Hippolyta even impersonated the real Wonder Woman on occasion during special missions, while the other Hippolyta mostly remained on Paradise Island.

When Earth-One Diana was born, she was not alone, for she had a fraternal twin sister born simultaneously who didn't gain much fanfare. Nubia was stolen by her mother Hippolyta's mortal enemy Mars, and raised on a separate floating island with all men as their queen. Years later, she was drawn back to Paradise Island to claim the title of Wonder Woman, and made a strong case in both her combat skills and in her sense of valor and fair play which her sister possessed. Eventually moving to Africa, Nubia became one of that continent's principal protectors as the second Wonder Woman and protected it from her brainwashed famous sister on one occasion. 

When Earth-Two eventually married the love of her life, Steve Trevor, the two brought forth an offspring who would inherit her mother's superhuman abilities. Naming their daughter Hippolyta, or Lyta for short, they raised her both in America and among the Amazonians. However, as she entered her late teens and early twenties, a growing resentment between mother and daughter developed when Diana held back giving her blessing for Lyta carrying on the family tradition as the next Wonder Woman. Instead, Lyta adopted a new alter ego in Fury, becoming a founding member along with her boyfriend and fiancee Hector "Silver Scarab" Hall of Infinity, Inc. where she eventually earned her mother's respect.

And of course, there is Donna Troy. On Earth-One, she was saved by Wonder Woman  from a fiery building early in the amazon's costumed career and as an orphan brought to Paradise Island where she was adopted by Queen Hippolyta and became Diana's second sister. Years later, she returned to man's world as Wonder Girl assisting the Teen Titans who themselves were sidekicks of the Justice League and made names for themselves as a legendary team. Meanwhile on Earth-Two, rather than Diana saving Donna, a firefighter performed the heroic deed and the orphaned girl eventually enrolled in Holliday College. As a Holliday Girl alongside sorority leader Etta Candy, this gal had many adventures with her Wonder Woman... on one occasion in the fourth dimension actually manifesting herself as a twin of her idol.

And centuries prior, the first Wonder Woman of Earth-One was Hippolyta's friend Artemis, who quickly became corrupted in her formerly heroic career before perishing. On Earth-Two, Wonder Woman travelled back in time with help from Paula’s space transporter, which inspired an earlier version of herself for that ancient era.

The Batwomen of Gotham City

No analysis of Batman is complete unless we also investigate the BatWOMEN who share his city. There have been many who were his allies, but foremost among these on two planes of existence is Earth-One's Batgirl...

And another femme fearless tied to the Dark Knight but with her own unique costumed identity, Earth-Two's Huntress...

Both were highly intelligent women in their respective professions. In Batgirl's case, her civilian identity was that of Barbara Gordon, she started out as a librarian before advancing to a  career  in a public relations firm followed by the position of congresswoman for one term. Yet always, it was Batgirl that kept distracting her secular pursuits: 

For Helena Wayne, who was the Huntress' real persona, she was the junior partner of Cranston, Grayson and Wayne serving as an attorney. Eventually she was assigned to assist her on-again off-again boyfriend District Attorney Harry Sims in his office as legal representation. Which caused a great deal of conflict between the two:

Both ladies, daughters of the police commissioners of Gotham City, had to operate in secret lest they raise the ire of their fathers whom they dearly loved. And both women lost their mothers at an early age which caused them to become at times emotionally distant from others. 

Eventually they each assisted the greatest teams of their respective Earths, with the Huntress instantly becoming a member while Batgirl remained a friendly associate instead. Each lass battled prominent femme fatales early on...Batgirl versus Queen Bee and Huntress versus the original Huntress.

And both of our pointy eared gals has a thing for their own Robins, whom they dearly loved albeit on the sly and without a word spoken:

Earlier tales of Batgirl mirrored those of the tales involving another red-haired heroine, the Black Widow of Earth-Two. Unlike her Earth-One counterpart Lori Elton, who was the off-and-on again girlfriend of Barbara's pal Dick "Robin" Grayson, Dianne Greyton used her mutant ability to control insects in her Black Widow alter ego. While both Batgirl and Huntress had numerous stories concurrent with one another, the former retired from active adventures a few years later while the latter amped up her own heroic career.

There were other females, such as the two Batwomen named Kathy Kane, and the two original Bat-Girls, Betty and Elizabeth Kane... both sets assisted the Dynamic Duo in their earlier careers. None left quite the impact as these two ladies, however.

Doomed Patrols... Then and Now

Two doomed patrols that ultimately met up with a gruesome end dealt to them by Nazi butchers. A trio of heroes (Doom Patrol's Elasti-Girl, Negative Man and Beast Boy of Earth-One... and Slim, Pedro and Fred from a golden age Patrol of Earth-Two) in similar styled costumes, each gaining the ability to alter the shape and size of their bodies. While not the stellar superheroes of their respective Earths like the Justice League or Justice Society, they nevertheless defended humanity with the same vigorous spirit.

The Doom Patrol was led by the brilliant Niles Caulder aka the Chief. However, Niles' counterpart was professional debunker Norah Blane. Norah uncovered various allegedly supernatural hoaxes and exposed them, working alongside Slim, Pedro on a handful of cases. While not the intellectual scientist that Niles was, Norah was a masterful tactical strategist which led to her being gainfully self-employed.

An odd yet winning combination of tragedy and triumph in the face of adversity that saved twin Earths One and Two more than once! However, while Cliff Steele aka Robotman was a member of the Earth-One Patrol, Robert Crane aka the Earth-Two Robotman stuck to the All-Star Squadron instead when not operating solo himself.

Later on, others enter the fray. One was the telekinetic billionaire turned masked man Steven Dayton. While never officially joining the Patrol, he aided them in order to curry the affection of former actress Rita Farr who as Elasti-Girl who considered her freakish allies as family.

His counterpart Harry Sims was the District Attorney of Gotham City, who had secretly worked behind the scenes with another former district attorney of Keystone City named Clifford Devoe to rid his city of superheroes who he felt were an embedment to public safety. When Sims disagreed with Devoe aka the Thinker’s tactics, he was mentally controlled by Thinker’s thinking cap. Sims’ as Thinker’s proxy likewise mentally controlled he superheroine Power Girl, unleashing her against her Justice Society teammate the Huntress. Eventually, Power Girl regained control of her consciousness, and with Huntress they defeated Thinker. After this, Sims begrudgingly accepted superheroes in Gotham, as he was in love with Huntress’ alter ego attorney Helena Wayne.

While the male Niles and the female Norah were righteous red-heads, there were others at the time who used superhuman shape shifting abilities to torment their fellow man. Madame Rouge (Laura De Mille) and Princess Helene (Kathe Rogers) were both pawns of the Brain/Monsieur Mallah and Jason Rogers/Monster respectively, each lady possessing the ability to shape-change, altering their physical appearance while also having their psychological profile altered drastically from innocent women to sadistic sirens. Rouge was a frequent foe then shortterm love interest of the Chief and his Doom Patrol, while Helene was on opposed by doomed Patrol members Slim, Pedro and Fred. Each woman also battled their world’s respectively Flash on one occasion.

Still later, a trio of heroes replace the deceased original Patrol of Earth-One:  the  energy catapulting mutant Joshua Clay aka Tempest, the heat and cold projecting heroine Celsius aka Arani Caulder, and Valentina Vostok  known as the Negative Woman.

Originally a U.S. soldier, widow of Niles Caulder from India and ex-pilot of the U.S.S.R... this trio has several adventures off and on.

On Earth-Two, there were three similar individuals who appeared on the scene to assist their fellow heroes without garnering front page press: Norda Cantrell the mutant human-Feitherian halfbreed bird-man known as Northwind, Red Nails who was a seductive inventor who iced her opponents by packing heat, and energy-self projecting Jonni Thunder... herself a private investigator turned heroine.

Several similarities exist between these two sets of triads. As contemporaries, they each mirrored one another in key areas with similar traits and attributes to one another yet with distinct differences in their fundamental nature.

Both Tempest and Northwind, young young black heroes, propelled through the air emitting energy blast, Valentina and Jonni each were reluctant heroines as much cursed as blessed with their energy alter-egos, Celsius and Red Nails were lovely ladies who used technology and manipulation to their benefit. And of course, they each faced their own personal tragedies.

Maidens of Steel: Last Daughters of Krypton

In May 1959, Superman was no longer unique amongst his kind. A fellow Kryptonian joined him in the fight to protect the Earth, only this individual was his cousin... and a female. Kara Zor-El, the last survivor (well at least that's what she thought) of the floating remnant city of Argo from long extinct Krypton, was sent to cousin Kal-El's new home world to assist him in his crusade to protect the innocent using an array of superhuman abilities. She was quickly dispatched into an orphanage until she was adopted and raised to adulthood by the Danvers family, unaware of her secret identity.

In January 1976, the Justice Society of America was revived in a semi-monthly format, and along the way they decided to introduce an Earth-Two version of the Maid of Might. This Kara, last name Zor-L, was the last survivor of Kandor who was several decades younger than her cousin. How could this be, when Krypton was destroyed in the early 20th century of this universe? This would be a mystery that would be closely guarded until years later during a solo run of Power Girl's in Showcase. In the interim, she developed a distinctly different persona than that displayed by her Earth-One counterpart. While Supergirl was alwasy eager to impress and emulate her famous cousin, Power Girl slowly began to resent Kal-L for his seeming overbearing attitude. Perhaps this was due to the fact that the only other Kryptonians that he had met in the flesh had been U-Ban, Mala and Kizo who were three exiled evil scientists. Seeing Kara's independent disposition no doubt caused him some pause, yet regardless he brought her into his home to tutor the socially ackward gal alongside his wife Lois Lane Kent, who became like a mother to her. Supergirl's alias on Earth was Linda Lee Danvers, while Power Girl's was Karen Starr.

Early in their career both Karas met their world's respective Justice teams, and even aided them on their first official team-up with them in defeating to mental mutants... Despero and Brain Wave! While Supergirl preferred to remain a solo heroine, perhaps in part to help her define herself from Kal-El, Power Girl readily jumped in the fray and immediately tagged along with the JSA until she was soon thereafter accepted as Kal-L's replacement at his request! Supergirl herself was a vagabond of a hero, traveling to various locations including Florida where she was a guidance counselor and New York City were she was a soap opera star before her final nesting place of Chicago where she went back to college. Power Girl herself gained instant education thanks in no small part to a memory teacher that Wonder Woman allowed her to use on Paradise Island, which provided Kara with a solid computer programming foundation. She then joined a tech firm in Gotham City, working alongside her her buddy the Huntress, before moving to Metropolis to start her own company. She also on occasion operated in Los Angeles.

In addition, both Girls of Might joined two teenage teams, the Legion of Super-Heroes and Infinity Inc. after having been partly recruited by a couple of brainy guys, Brainiac Five and Brainwave Jr. However they only stayed attached to them on an honorary basis... after all these teams didn't operate in their locale... Infinity Inc. was on the west coast directly opposite Power Girl's home base of Metropolis while the Legion operated on the east coast... but in the 30th century!

While both blonde bombshells were deep down found of their cousins, there were times when they came to blows particularly when both Men of Steel temporarily lost their minds alongside their fellow JLA and JSA members. Each held her own. Years later, Supergirl learned that her parents Zor-El and Allura and survived in a type of Phantom Zone until she released them and they began to live in the bottled city of Kandor. Also years later, Power Girl's secret origin was revealed, as she had been sent from her planet at the same time as Kal-L although her vessel came equipped with two distinct components his did not possess: a suspended animation component and a virtual reality device. The former kept her from aging beyond twenty years while the latter allowed her to experience life on "Krypton", albeit a virtual reality construct of said planet. This included interacting with her fellow Kandorians (she had moved from Argo City as an infant) including Zor-L and Allura until her Symbioship vessel eventually brought her to Earth.

The Crisis on Infinite Earths proved to be a devastating experience for both women, as Supergirl perished in battle against the Anti-Monitor while Power Girl's history was wiped out as her planet merged with Earth-One. Still, their legends prevailed and each would return in her own distinct way to once more battle evil. And eventually meet, which they never had previously.