Roddy McDowall
— Alec MacLennan
Elena Verdugo
— Bianca Pereira
Roland Winters
— E.J. Ransom
Peter Mamakos
— Capt. Manuel Pereira
Rick Vallin
— Silvestre Pereira
Russell Simpson
— Capt. Fergus MacLennan
Doris Kemper
— Anne MacLennan
Dickie Moore
— Frankie Pereira
Richard Avonde
— Pete
Victor Sen Yung
— Oriental Dock Worker
Michael Vallon
— Papa Pereira