Michael Owen Rosenbaum (born July 11, 1972) is an American actor. He is best known for portraying Lex Luthor on Smallville. Continuing in the comic book genre, he voiced Wally West (a.k.a. The Flash) in the DC Comics animated series Justice League. Rosenbaum has also done film and other voiceover work. In February of 2007, Rosenbaum confirmed that he would be leaving Smallville after the show's 7th season. However, he may return as an occasional special guest star.  Rosenbaum was born in Oceanside, New York and raised in Newburgh, Indiana, where he graduated from Castle High School. He is Jewish and graduated from Western Kentucky University in Bowling Green, Kentucky and was a member of Sigma Alpha Epsilon fraternity, with a degree in theatre arts and immediately moved to New York City to pursue an acting career. Rosenbaum is also known for his love of ice hockey, a sport he grew up playing. He is an ardent New York Rangers fan and often plays in charity hockey games.