Julie Harris

Betsie ten Boom

Arthur O'Connell

Casper ten Boom, 'Papa'

Robert Rietti

Willem ten Boom

Tom van Beek

Dr. Heemstra

Nigel Hawthorne

Pastor De Ruiter

John Gabriel

Professor Zeiner

Bernard Kay

Fred Koonstra

David de Keyser

Eusie Koonstra

Norman Rodway

Van Der Veen

Carole Ann Ford

Woman

Michael Sheard

Kapteyn

Eileen Heckart

Katje

Bernard Archard

Lt. Rahms

Catherine Willmer

Mrs. Doreau

Edward Burnham

Underground Leader

Frances Ruffelle

Sarah Van Der Weghe (uncredited)

Jill Goldston

Woman in Camp (uncredited)