John P. Ryan

Frank Davis

Sharon Farrell

Lenore Davis

Andrew Duggan

The Professor

Guy Stockwell

Bob Clayton

James Dixon

Lt. Perkins

Michael Ansara

The Captain

Robert Emhardt

The Executive

William Wellman Jr.

Charley

Shamus Locke

The Doctor

Nancy Burnett

Nurse

Daniel Holzman

Chris

Diana Hale

Secretary

Patrick McAllister

Expectant Father

W. Allen York

Expectant Father

Gwil Richards

Expectant Father

Jerry Taft

Expectant Father

Gerald York

Expectant Father