Frank Oliver, Billy Bob Jenks
Unrevealed; US criminal record
Place of Birth
(Cameo) Cage #13 (1993); (fully) Spectacular Spider-Man #242 (1997)
Spectacular Spider-Man #242 (1997)
7'7" (originally 5'11")
377 lbs (originally 205 lbs.)
Spider-Man allowed the repentant pair to escape and hauled Kangaroo and Spot to prison, where Kangaroo exorcised his frustrations by building up his fighting skills and strength, earning the skills he hoped might later give pause to his opponents.
Soon at liberty again, Kangaroo underwent treatment seeking superhuman mutation. When this seemingly failed, he became a professional baseball player as Billy Bob Jenks, but, although he quickly rose to super-star status, he was expelled from the sport after his criminal past came to light. Returning to crime, he was quickly recaptured and imprisoned, his admittedly embarrassing super-villain career probably provoking more concern than he warranted. Incarcerated at the power-dampening Cage, Kangaroo parlayed his unaffected human-level fighting skills into prison respect. However, stress and exertion catalyzed his earlier mutation attempts, increasing his size and strength while retarding his intellect and fostering the delusional belief that he was the late Oliver; his newly increased strength might have approached superhuman level, but in the Cage there was little way to tell and less chance to use it.When Tombstone, one of Spider-Man’s deadlier enemies, was sentenced to the Cage, Kangaroo was eager to intimidate him, but Tombstone remained unimpressed, though their brawl sparked an intense rivalry. When Tombstone was held in solitary confinement, Kangaroo terrorized his prisoner allies — Big Ben, Hypno-Hustler, and Rocket Racer — but Tombstone spread a false tip that his room could be reached via a heating vent. Kangaroo became stuck in the endeavor, leaving him to be brutalized by a prison gang, the Cruisers. Tombstone soon escaped, but Kangaroo remains in prison, remade far more than he intended.