Michael Rosenbaum (born July 11, 1972) is an American actor and director. He is best known for portraying Lex Luthor on Smallville and Flash in the DC animated universe.
A super serum turns a little unhealthy guy into an overpowered super soldier, but it takes more than muscle to convince others he can do this all day. Oh, by the way, he also uncovers a conspiracy & witnesses the Avengers disassemble.
