Cornelius Westbrook Van Voorhis (September 21, 1903 - July 13, 1968) was a narrator for television programs and movies. He is perhaps best known for his work on The March of Time radio and newsreel series, where he became known as the "Voice of Doom", as well as for the catchphrase, "Time...marches on!". He narrated each episode of the 1954-1956 NBC series Justice, starring Dane Clark and Gary Merrill. He also did narration for the 1957 television series  PANIC!. He was originally scheduled to be the announcer for The Twilight Zone television show.