Fantastic Four: World's Greatest Heroes - Season 1 Episode 23
Watch TV Shows Fantastic Four: World's Greatest Heroes HD During a confrontation with Diablo, Johnny is exposed to a potion that makes him more powerful. Unfortunately, the potion also begins to turn him evil.
- Year: 2007
- Country: France, United States of America
- Genre: Animation, Action & Adventure, Sci-Fi & Fantasy, Kids
- Studio: Cartoon Network
- Director: Craig Kyle, Christopher L. Yost
- Cast: Brian Dobson, Lara Gilchrist, Christopher Jacot, Hiro Kanagawa