5. Ultra Boy
Ah, Ultra-boy. Ultra-boy was Jo-Nah of the planet Rimbor. Jo gained his powers when the space-speedster he was flying was swallowed by an Ultra-energy beast which took the form of a giant "space whale". Jo-Nah (geddit?) is rescued by a nearby security patrol who slice open the space whale, but it was too late. While inside the Ultra-energy beast Jo-Nah was exposed to massive doses of cosmic radiation which remarkably didn't give him leukemia, but instead gave him powers similar to Superman (yay!), but he can only use them one at a time (boo!).