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