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Official Site: Marvel

Rebecca "Rikki" Barnes is a fictional character appearing in American comic book published by Marvel Comics. Created by writer Jeph Loeb and artist Rob Liefeld, the character first appeared in Captain America (vol. 2) #1 (November 1996), where she was established as the Counter-Earth incarnation of Bucky during the 1996 "Heroes Reborn" storyline. Rikki crossed over to Earth-616 in the 2008 Onslaught Reborn miniseries, in which she operated as Nomad for a time, later joining the Exiles in another reality, and then the Future Foundation in the mainstream Marvel Universe.

Rikki Barnes was first introduced in the Heroes Reborn series of books. She is native to this world that was created by Franklin Richards in order to save his family, the Fantastic Four, and the rest of the heroes who 'died' fighting Onslaught. Franklin was able to access this world through a blue orb he created. The heroes were healed and given new memories to adjust to this new reality. Rikki Barnes was a native to this world and granddaughter to her world's version of Bucky Barnes.

Her brother John was involved with a radical group led by the Red Skull and through that contact she met Captain America, eventually becoming his protégé. He and the other heroes left this world when they realized the danger they presented to it in Heroes Return, and Rikki stayed behind. Through various events this world was eventually brought into the Marvel Universe proper and is now the new Counter-Earth. But the crossover caused great ecological change and half the world was submerged underwater. Rikki eventually formed a group of like minded individuals to bring order, and they called themselves the Young Allies.

After the events of M-Day, Franklin became the target of an Onslaught that had been reborn from the mutant energy that had been stolen and unleashed during the events of that series. In an effort to escape the villain, Franklin revealed a green orb that contained a copy of the Heroes Reborn universe; however in this world the Heroes did not leave so all the damage that happened when the world was moved from its pocket dimension did not happen. Franklin, while running from Onslaught, eventually encountered Rikki, who summoned the Avengers to battle entity.

Rikki Barnes has not been a contender in any CBUB matches.