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