Chris Diamantopoulos is a Greek-Canadian actor. His acting career began in the early 2000s. During his beginnings, he guest starred on many TV shows. This includes Law & Order, Third Watch, Frasier, Nip/Tuck, Charmed, and American Dreams, among others. His first notable role was on the miniseries The Starter Wife. He next had a recurring role on the TV series State of Mind. He also worked as a voice actor on the animated series American Dad!. He then became known for his role as Rob Weiss on 24 and Frank Sinatra on the miniseries The Kennedys. In addition, he’s had recurring characters on Up All Night, The Office, and Arrested Development.