Metamorpho (DCAU) has appeared 2 times in indexed Justice League stories.
|Appeared As||Appeared In||Notes||Portrayed by|
|1122||Guest Star||Justice League 1x22 "Metamorphosis Part One"||Rex Mason, an old friend of John Stewart from their time in the US Marines. He now an executive with Stagg Enterprises where he is dating Sapphire Stagg, the boss's daughter. Her father uses Mason as an unwilling test subject and transforms him into Metamorpho, a being able to alter his chemical make up at will. He then convinces Mason that Sapphire is cheating on his with John Stewart.||Tom Sizemore|
|1123||Guest Star||Justice League 1x23 "Metamorphosis Part Two"||Rex Mason, an old friend of John Stewart transformed into a monster by Simon Stagg. Tricked by Stagg into believing that Stewart is cheating with his fiancée Sapphire. Can even duplicate kryptonite. Almost destroys himself taking out the Sythoid, but reconstitutes himself from its remains and Sapphire's tears.||Tom Sizemore|