Robert Hays

D.H. 'Hank' Mercer / Biff Deegan

Acting

Catherine Mary Stewart

Marissa

Acting

Christopher Murney

Lt. Greenberg

Acting

Fred Gwynne

Victor Greville

Acting

Celeste Holm

Claire

Acting

Jonathan Moore

Nicholas Rubinstein

Acting

Martin Neufeld

Pete

Acting

Michael Copeman

Acting

Bunty Webb

Acting

Eric Keenleyside

Acting

Robin Ward

Acting

Eric Fink

Acting

Thick Wilson

Acting

Al Bernardo

Acting

Louis Di Bianco

Acting

Marc Gomes

Acting

Raymond Hunt

Acting

James Walton

Acting

Lynne Cormack

Acting

Lynne Gorman

Acting

Robbi Baker

Acting

Alan Rose

Tony (uncredited)

Acting

Jacques Sandulescu

Timothy (uncredited)

Acting

Lewis J. Stadlen

Norman Wagstaff (uncredited)

Acting

Gavin Steed

Roger Delacroix (uncredited)

Acting