Richard Murdoch
— Cmdr. Bissham-Ryley
William Kendall
— Major Rory McQuarry
Maya Koumani
— Maxine Millard
William Hartnell
— Grimshaw
Neil Hallett
— Basil Wantage
Bruce Seton
— Inspector Shearing
Ellis Irving
— Captain Sharples
Larry Burns
— Barman
Llewellyn Rees
— Mellinger
Paul Beradi
— Bar Patron (uncredited)
Paul Bogdan
— Rizzi (uncredited)
Beresford Egan
— O'Connor (uncredited)
George Hilsdon
— Police Constable (uncredited)
Norman Pitt
— Muspratt (uncredited)
Colin Rix
— Warder (uncredited)
Harry Ross
— Hot Dog Man (uncredited)
Ian Selby
— Shareholder (uncredited)
Reg Thomason
— Shareholder (uncredited)
Jean Trend
— Elsie (uncredited)