and
Terry Austin. Thundra is a warrior woman and
time traveler from the 23rd century on Earth-715. In her timeline,
Earth is now known as Femizonia and is ruled by
Amazon-like
overlords (
Femizons) who have enslaved Earth's men. The former
United States is now the 'United Sisterhood Republic', and Thundra hails from the
megalopolis of Greater Milago (a merged sprawl of
Milwaukee and
Chicago), located in the United Sisterhood's Midwestern Republic. Thundra is renowned as the United Sisterhood's most formidable warrior, having been physically enhanced by
genetic engineering and trained in combat and tactics from a young age. Thundra is sent to the 20th century to challenge Fantastic Four member the
Thing to a bout of one-on-one combat, believing him to be the strongest male of all time. By beating the Thing in combat, she feels she can prove once and for all that women were superior to the male
gender, and finally end a stagnant war between Femizonia and the warlike, male dominated planet of Machus, where the female population had been subjugated by its ruler
Mahkizmo. Thundra is also recruited into the evil group of
supervillains known as the
Frightful Four by the
Wizard, and they battled the
Fantastic Four. She secretly has her own agenda and has no real interest in the group. She battled the Thing in personal combat, and then wound up ultimately switching sides and helping the Fantastic Four defeat the Frightful Four after she quits that group. She later battled the
Hulk, who was possessing the Thing's body at the time. Thundra later assisted the Fantastic Four against the Frightful Four again, and then assisted the Fantastic Four against
Namor the Sub-Mariner. Her time travel from 23rd century Femizonia, an alternate future Earth ruled by women, to prevent the formation of Machus, a planet in her alternate future dimension ruled by men, was finally revealed. Alongside the Fantastic Four, she battled Mahkizmo. She ultimately remained in the 20th century after a dimensional interface of Femizonia and Machus occurred. She later assisted the Fantastic Four and
Tigra against the Frightful Four, and then assisted the Fantastic Four, Tigra, and the
Impossible Man against the
Brute,
Mad Thinker, and
Annihilus. Thundra later met wrestling promoter Herkimer Oglethorpe, and on his advice she became a
professional wrestler training with the
Grapplers, a group of female wrestlers who possess
cybernetic-endowed superpowers. In a fixed wrestling match with one Grappler member, Thundra (who has superior strength and fighting skills) is secretly drugged by her opponent, causing her to
black out and lose the match. When she awakens, it was revealed that the Grapplers were agents working for the
Roxxon Oil Company, a
multinational petroleum company which was
covertly involved in developing advanced technology and weaponry for sinister motives. The Grapplers were assigned to trick Thundra into helping them
sabotage Project Pegasus, a prison/research facility built for housing supervillains. They were employed to smuggle the Nth Projector out of Project Pegasus. As a result of the deception by Roxxon and the Grapplers, Thundra came to blows (yet again) with the Thing (in whom she has expressed a romantic interest, on more than one occasion). She encountered the duplicate
Hyperion and the
Avengers, and battled
Ms. Marvel. She is briefly allied with the duplicate Hyperion while still in service to Roxxon, and with him stole the Nth Projector from the Nth Command, before she returned to an alternate Femizonia which did not interface with Machus. Sometime later, Thundra was revealed as the Empress of Femizonia. She teamed with the Thing to battle Machan rebels. She later abducted the Avengers and Fantastic Four to the future to enlist their aid in defending Femizonia from the extra-dimensional warlord
Arkon and his warriors from Polemachus. She fought Arkon in personal combat, and became romantically inclined toward him. However, Thundra has a special place in her heart for Ben Grimm. In addition to her amorous advances, the two have been involved in numerous superheroic adventures; one significant pairing of the two involved enlisting Grimm to help liberate Femizonia from a powerful, six-armed
android sent from Machus to conquer the Femizons. After defeating the android, Grimm informed Thundra that they could never be together, expressing his love for
Alicia Masters. Thundra then allowed him to return to the 20th century.
Lady Liberators Thundra,
Sue Storm and
Valkyrie team up with
She-Hulk and her Skrull partner
Jazinda (masquerading as a
Shi'ar) to forcibly distribute stagnating aid in the corrupt country of Marinmer.
Alliance with the Red Hulk The
Red Hulk battles the
Lady Liberators and tricks them into believing they caused him to pass out. Red Hulk then kidnaps Thundra, and offers her an alliance after deducing she was the only one of the group that was willing to kill him. After agreeing to the alliance, Thundra becomes a subordinate of the
Intelligencia, a group of genius villains founded by
Leader. After Red Hulk is betrayed by the Intelligencia in the "
Fall of the Hulks" storyline, Thundra aids him in his escape and leaves the group. Since her departure from the group, her daughter
Lyra has joined their ranks. ==Powers and abilities==