He found playing psychopathic George on Desperate Housewives very fun because it was different from all of his other roles.
In 1985, he earned a Bachelor of Fine Arts.
He won the Tony Award for 'Best Actor' for his role in You're a Good Man, Charlie Brown in 1999. He was also nominated for this award again in 2001 for his role in The Producers.
He attended Rutgers University.
Although he was only scheduled to be a recurring character, Roger became a series regular in the second season of Desperate Housewives.
Prior to The Producers, the motion picture adaption, he had already worked with the two leads, Nathan Lane and Matthew Broderick, in The Frogs and The Stepford Wives respectively.
He replaced Chris Kattan, in The Frogs, shortly before the musical opened.
Roger has acted in both a Broadway and a film version of The Producers. Although he played different characters in both.
Roger is the nephew of Peter Bart.
Roger's two daughters are named Alexandra and Eller.
Roger is 5'10" tall.
(Talking about his character, George, on Desperate Housewives as he begins obsesses over Bree Van De Kamp)
Roger Bart: There was one scene early on where George is home alone, eating dinner and watching Bree on the surveillance video from the drug store, ... I think that's when America went, 'Uh-oh'.
(Talking about his role on Desperate Housewives)
Roger Bart: I've tried to maintain an uneasy balance between your friendly unassuming neighborhood pharmacist and Anthony Perkins in 'Psycho'.