He was the narrator of the famous TV series The Invaders, an American science fiction television program created by Larry Cohen that aired on ABC for two seasons, from January 10, 1967 to March 26, 1968. Dominic Frontiere, who had provided scores for Twelve O'Clock High and The Outer Limits, provided scores for The Invaders as well. The series was later shown in reruns on the Sci Fi Channel. The series was a Quinn Martin Production (season one was produced in association with the ABC Television Network - or as it was listed in the end credits, "The American Broadcasting Company Television Network").