Doomsday Machine

Bobby Van

Danny

Ruta Lee

Dr. Marion Turner

Mala Powers

Maj. Georgianna Bronski

James Craig

Dr. Haines

Grant Williams

Maj. Kurt Mason

Henry Wilcoxon

Dr. Christopher Perry

Essie Lin Chia

Girl Spy

Casey Kasem

Mission Control Officer

Lorri Scott

Lt. Katie Carlson

Denny Miller

Col. Don Price

Mike Farrell

1st Reporter

Mark Bailey

Major / Astronaut

Mary Meade

Woman Reporter

John Cestare

Raymond Mayo

Michael Christian

Stanley Cortez

Director of Photography

Lee Sholem

Director

Herbert J. Leder

Director

Harry Hope

Director, Producer

Stuart J. Byrne

Screenplay, Original Story

Oscar Nichols

Executive Producer

James E. Schwarm

Art Direction