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