Guest Stars Kent Smith as Edgar Scoville Linwood McCarthy as Col. Archie Harmon Ross Elliott as Prof. Eliot Kramer Walter Baldwin as Walter Donald Davis as Lucien Ahna Capri as Joan Surrat Ed Prentiss as Stanley Leeds John Milford as Jim Bryce Charles J. Stewart as Robertson Co Starring Don Chastain as Blake Pamela Curran as Louise Warren Vanders as Earl Ken Lynch as Lieutenant Conners 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
