Do you want to compare Swamp Thing with Heimdall? Discover the powers, weakness & weapons of Swamp Thing and Heimdall from Swamp Thing Biography and Heimdall Biography. Find out all about Swamp Thing and Heimdall.# Check out how is Swamp Thing unique and distinct from Heimdall. Discover their love interest, sidekicks, family tree and the movies and games list in which Swamp Thing and Heimdall have appeared. Find out everything about them here!