He may be known to public as but the actor's actual full name is Seth Benjamin Gesshel-Green. The "Robot Chicken" producer, however, is on the process of eliminating "Gesshel", which is his mother's maiden name.
Seth filed the petition to legally change his name at Los Angeles County Superior Court this month. According to the documents obtained by TMZ, he asked a judge to grant the shoter version of his name, which is Seth Benjamin Green. The reason, as stated by Seth, is "to reflect my professional stage name."