Alec Guinness as Maj. Jock Sinclair, D.S.O., M.M.

John Mills as Lt. Col. Basil Barrow (Battalion Commander)

Dennis Price as Maj. Charles 'Charlie' Scott, M.C. (Battalion Executive Officer)

Kay Walsh as Mary Titterington

Susannah York as Morag Sinclair

John Fraser as Cpl. Piper Ian Fraser

Gordon Jackson as Capt. Jimmy Cairns, M.C. (Battalion Adjutant)

Duncan Macrae as Pipe Maj. Duncan MacLean

Percy Herbert as RSM Riddick

Allan Cuthbertson as Capt. Eric Simpson

Paul Whitsun-Jones as Major Dusty Miller

Gerald Harper as Major Hugo Macmillan

Richard Leech as Captain Alec Rattray

Peter McEnery as 2nd Lt. David Mackinnon

John Harvey as Sergeant (Bridge Hotel)

Keith Faulkner as Piper Adam

Angus Lennie as Orderly Room Clerk

Andrew Keir as Lance Corporal Campbell

Eric Woodburn as Landlord

Andrew Downie as Corporal Walter

Jameson Clark as Sir Alan

Lockwood West as Provost

Gwen Nelson as Provost's Wife

Joan Hickson as Guest at Party (uncredited)

Frazer Hines as (uncredited)

bryan hulme as Corporal Drummer

Robert Arnold as Officer

Richard Rudd as Officer

John Barcroft as Officer

James Copeland as Officer

Mark Burns as Officer

John Bown as Actor

William Young as Officer

David Webb as Officer

William Marlowe as Officer

Barry Steele as Officer

Keith Banks as Officer