Zwiastun
Obsada
William Sylvester
Sam Slade
Bruce Seton
Prof. Flaherty
Nigel Green
Bulletin Announcer (Uncredited)
Bill Travers
Joe Ryan
Christopher Rhodes
McCartin
Dervis Ward
Bosun
Joseph O'Conor
Prof. Hendricks
Martin Benson
Dorkin
Maurice Kaufmann
Radio Reporter
Basil Dignam
Admiral Brooks
Tommy Duggan
First Naval Officer
Barry Keegan
Mate