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