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