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