Rosenbaum is also known for portraying Dutch Nilbog on FOX's Breaking In, and voiceover work in animation, such as his role of Wally West/the Flash in the DC animated universe.
Between 20, he played the lead role in the TV Land comedy series Impastor.
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The film had a cast including Jon Heder and Colin Hanks, however, at least half of the film's budget was lost, therefore the film was scrapped.
In February 2008, Rosenbaum confirmed that he would be leaving Smallville after the seventh season of the show, but in 2011, he returned for the series finale.Another actress but this time from Vampire Diaries, Michael Rosenbaum was in a boyfriend and girlfriend relationship that ended the same year for unknown reasons.His last spat with another woman called Laura Vandervoort that started dating in 2012 and lasted for one year and one month.The pilot was never green-lighted, but Rosenbaum stood out as a newly discovered talent.A new MTV pilot was conceived specifically for Rosenbaum with the working title of The Michael Rosenbaum Project. He has been in one celebrity relationship averaging approximately 8.2 years. Given Name: Michael Owen Rosenbaum Age: 45 (7/11/1972)Occupation: Entertainment - Actor Most Famous For: Lex Luthor in TV Series Smallville "Not only was she an avid marijuana user, but she also did cocaine.And what's worse, she began making money dealing coke. Yet the series was cancelled again after a few episodes of the second season.In 2014, Rosenbaum made his feature film directorial and writing debut with the comedy Back in the Day, where Rosenbaum stars as an actor who returns to his hometown in Indiana for a class reunion.He filmed the original Sy Fy comedy series Saved By Zeroes; yet was never picked up.He recurred in Fox's original sitcom Breaking In; getting cancelled initially, the show got a second chance, and Rosenbaum was promoted to series regular.