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