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