Sean Murray's television credits include a starring role in the series "The Random Years" and a supporting role in "Harts of the West," on CBS. He has made guest appearances on numerous shows including "JAG," on CBS, "Boston Public" and "ER." In addition, Murray has appeared in several feature films, including "Hocus Pocus," "This Boy's Life," and starred in Todd Field's "Too Romantic." He plays the role of Timothy McGee in the CBS series NCIS. Special Agent Timothy McGee was originally a computer technician employed with NCIS and frequently assisted Gibbs and his team when they needed technical and computer-related expertise. Later requested by Gibbs as an addition to his team. He attended M.I.T. and enjoys online gaming. DiNozzo refers to him as "Probie" in reference to this lower-echelon position as a probationary agent. In season 4, he has been promoted to a full field agent and even served as Senior Field Agent while DiNozzo was in command.