A plant-like superhero, and member of the Justice League. Contents[show] DescriptionEdit AppearancesEdit 4. Abate and Switch 7. Zombie King 25. Garden of Evil 28. The Fatal Fare Short 14. Missing the Mark LinksEdit NotesEdit He is voiced by Mark Hamill, who also voices The Joker and Trickster. GalleryEdit Retrieved from "https://justice-league-action.fandom.com/wiki/Swamp_Thing?oldid=21637" Categories: Characters Heroes Males Add category Cancel Save Community content is available under CC-BY-SA unless otherwise noted.