Rod Serling

Narrator (archive sound)

Gig Young

Martin Sloan (archive footage)

Frank Overton

Robert Sloan (archive footage)

Burgess Meredith

Henry Bemis (archive footage)

Vaughn Taylor

Mr. Carsville (archive footage)

Jacqueline deWit

Helen Bemis (archive footage)

Maxine Stuart

Bandaged Janet Tyler (archive footage)

Agnes Moorehead

Woman (archive footage)

Lloyd Bochner

Michael Chambers (archive footage)

Susan Cummings

Patty (archive footage)

Richard Kiel

Kanamit (archive footage)

Claude Akins

Steve Brand (archive footage)

Barry Atwater

Les Goodman (archive footage)

Jack Weston

Charlie Farnsworth (archive footage)

Irene Tedrow

Mrs. Sloan (archive footage)

Ron Howard

Wilcox Boy (archive footage)

Byron Foulger

Charlie (archive footage)

Lela Bliss

Mrs. Chester (archive footage)

William D. Gordon

Doctor (archive footage)

Jennifer Howard

Janet's Nurse (archive footage)

George Keymas

Leader (archive footage)

Douglas Heyes

Astronaut (archive footage)

Theo Marcuse

Citizen Gregori (archive footage)

Hardie Albright

Secretary General (archive footage)

Jan Handzlik

Tommy (archive footage)

Burt Metcalfe

Don Martin (archive footage)

Mary Gregory

Sally (archive footage)

Bill Erwin

Wilcox (archive footage)

Pat O'Malley

Mr. Wilson (archive footage)

Anne Barton

Myra Brand (archive footage)

Leah Waggner

Mrs. Goodman (archive footage)

Ben Erway

Pete Van Horn (archive footage)

Lyn Guild

Mrs. Farnsworth (archive footage)

Edson Stroll

Walter Smith (archive footage)

Donna Douglas

Janet Tyler (archive footage)

Nelson Olmsted

Scientist (archive footage)

Bartlett Robinson

Colonel #1 (archive footage)

Carleton Young

Colonel #2 (archive footage)

Robert Tafur

Senor Valdes (archive footage)

Lomax Study

Leveque (archive footage)

Jerry Fujikawa

Japanese Delegate (archive footage)