Peter Addenbrooke Thomas was an American announcer and narrator of television programs with a career spanning more than 70 years, most well known for narrating the long-running true-crime series Forensic Files.

Thomas performed voice-overs for hundreds of television commercials including Coca-Cola, IBM, Valvoline, NBC, United Technologies, Burger King, Beaumont Health and ESPN Monday Night Football commercials, as well as spots for social organizations including the YWCA and The Episcopal Church. He was in high demand for political advertisements and did several films for the US Dept. of Veterans Affairs. He also narrated the orientation video for the National World War I Museum at The Liberty Memorial in Kansas City, Missouri.