Arthur Branch

Arthur Branch is a fictional character on the TV crime drama Law & Order and one of its spinoffs, Law & Order: Trial by Jury. Branch has also appeared on Law & Order: Special Victims Unit, Law & Order: Criminal Intent, and Conviction. He appeared in 142 episodes of the various series in the franchise (116 episodes of Law & Order, 11 episodes of Law & Order: Special Victims Unit, one episode of Law & Order: Criminal Intent, all 13 episodes of Law & Order: Trial by Jury, and the pilot episode of Conviction).

Branch was portrayed by former U.S. Senator Fred Thompson. He played Branch concurrently in Law & Order and Trial by Jury, making him one of the few actors to have a regular role on two TV series simultaneously as the same character. When Thompson began the role, he was still a sitting member of the United States Senate—his term did not expire until several months after his first episode aired—thus making Thompson the first sitting U.S. Senator to portray someone other than himself on TV. (Thompson had had an active acting career before his election to the Senate.)