Justice League
Metamorphosis: Part 1
S1 E22:
While on duty, Green Lantern reunites with Rex Mason, an old former Marine buddy who is now a successful executive at a large chemical company. But after Rex is exposed to a powerful mutagen that transforms him into a freakish abomination called Metamorpho, he blames his old friend Green Lantern and vows to destroy him.
Starring
Tom Sizemore