Lon Chaney Jr. as Morgan Whitlock

Jack Hedley as Bill Lanier

Jill Dixon as Tracy Lanier

David Weston as Todd Lanier

Diane Clare as Amy Whitlock

Yvette Rees as Vanessa Whitlock

Viola Keats as Helen Lanier

Marie Ney as Malvina Lanier

Victor Brooks as Inspector Baldwin

Barry Linehan as Myles Forrester

Marianne Stone as Forrester's Secretary

John Dunbar as Doctor

Hilda Fenemore as Nurse