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