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