Guest Stars Kent Smith as Edgar Scoville Linwood McCarthy as Col. Archie Harmon Ross Elliott as Prof. Eliot Kramer Ahna Capri as Joan Surrat Charles J. Stewart as Robertson John Milford as Jim Bryce Ed Prentiss as Stanley Leeds Walter Baldwin as Walter Donald Davis as Lucien Co Starring Don Chastain as Blake Ken Lynch as Lieutenant Conners Warren Vanders as Earl Pamela Curran as Louise Uncredited William Woodson voices Narrator Craig Chudy as Alien Sid Troy as Police Officer Rudy Germane as Reporter Orwin C. Harvey as Alien Fighting with Kramer
