John Gregson
character Captain Bell - H.M.S. Exeter
Anthony Quayle
character Commodore Harwood - H.M.S. Ajax
Ian Hunter
character Captain Woodhouse - H.M.S. Ajax
Jack Gwillim
character Captain Parry - H.M.N. Z. S. Achilles
Bernard Lee
character Captain Dove - M.S. Africa Shell
Lionel Murton
character Mike Fowler
Anthony Bushell
character Sir Millington Drake, British Minister, Montevideo
Peter Illing
character Dr. Guani, Foreign Minister, Uruguay
Michael Goodliffe
character Captain McCall, R.N., British Naval Attache, Buenos Aires
Patrick Macnee
character Lieutenant Commander Medley, R.N.
John Chandos
character Dr. Langmann, German Minister, Montevideo
Douglas Wilmer
character M. Desmoulins, French Minister, Montevideo
William Squire
character Ray Martin
Roger Delgado
character Captain Varela, Uruguayan Navy
Andrew Cruickshank
character Captain Stubbs, 'Doric Star'
Christopher Lee
character Manolo
Edward Atienza
character Pop
April Olrich
character Dolores
Peter Finch
character Captain Langsdorff, "Admiral Graf Spee"
David Farrar
character Narrator
Jeremy Kemp
character Gunner, H.M.S. Achilles
John Le Mesurier
character Reverend George Groves - Padre, HMS Exeter
Cyril Luckham
character Lieutenant Jasper Abbot, H.M.S. Achilles
Donald Moffat
character Swanston, Lookout, H.M.S. Ajax
George Murcell
character Chief Officer, Newton Beach
Anthony Newley
character Radio Operator, Tairoa, Prisoner on Admiral Graf Spee
Nigel Stock
character Chief Officer, Tairoa, Prisoner on Admiral Graf Spee
Barry Foster
character Bill Roper - Capt. Bell's Messenger, HMS Exeter
Ambrosine Phillpotts
character Mrs. Millington-Drake, Montevideo
Tony Wager
character Lookout, HMS Ajax
Brian Worth
character Radio Operator, Doric Star, Prisoner on Graf Spee