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