DC COMICS: DC Animated Universe Bio Swamp Thing

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ANIMATED BIO BY COMIC VINE
Although Swamp-Thing never directly appeared in any DC Animated Universe cartoon, an alien bearing a striking resemblance to him had a blink-and-you-missed-it appearance in the background of the Justice League episode " Comfort and Joy".



This could actually be Swamp Thing since in his comic book series he did go into outerspace for an adventure.

ANIMATED COMIC BOOK BIO BY DC COMICS DATABASE
Alec Holland was a brilliant botanist and biochemist. After her escape from Gotham City, Poison Ivy struck up a relationship with him.