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