Michael Crawford as Michael Tremayne

Oliver Reed as David Tremayne

Harry Andrews as Insp. Marryatt

James Donald as Col. Gurney-Simms

Michael Hordern as Sir Matthew

Daniel Massey as Riggs

Gabriella Licudi as Eve

Lotte Tarp as Inge

Michael Goodliffe as Lt. Col. Paling

Rachel Kempson as Mrs. Tremayne

William Mervyn as Uncle Edward

Freda Jackson as Mrs. Pervis

Peter Graves as Mr. Tremayne

Warren Mitchell as Lennie

Frank Finlay as Harrassed Man

Brian Wilde as Sgt. Catchpole

Ingrid Boulting as Sarah

William Kendall as Maj. Gen. Jeffcock

Edward Fox as Lt. Sprague

Mark Burns as Capt. Browning

Basil Dignam as David's Bank Manager

Kenneth Colley as De Winter

Eric Thompson as Customs Officer

William Devlin as Brigadier

Peter Gilmore as Army Officer

Nicky Henson as Man at Party with Hunting Horn

Julian Holloway as Man at Party

Brook Williams as Capt. Green