Captain Bell - H.M.S. Exeter

Commodore Harwood - H.M.S. Ajax

Captain Woodhouse - H.M.S. Ajax

Captain Parry - H.M.N. Z. S. Achilles

Captain Dove - M.S. Africa Shell

Mike Fowler

Sir Millington Drake, British Minister, Montevideo

Dr. Guani, Foreign Minister, Uruguay

Captain McCall, R.N., British Naval Attache, Buenos Aires

Lieutenant Commander Medley, R.N.

Dr. Langmann, German Minister, Montevideo

M. Desmoulins, French Minister, Montevideo

Ray Martin

Captain Varela, Uruguayan Navy

Captain Stubbs, 'Doric Star'

Manolo

Pop

Dolores

Captain Langsdorff, "Admiral Graf Spee"

Narrator

Gunner, H.M.S. Achilles (uncredited)

Reverend George Groves - Padre, HMS Exeter

Lieutenant Jasper Abbot, H.M.S. Achilles

Swanston, Lookout, H.M.S. Ajax (uncredited)

Chief Officer, Newton Beach