Brian Reece

as Capt. Bill Harper

Margot Grahame

as Wanda Sinclair

Raymond Huntley

as Col. Fred Bellamy

Sidney James

as Ed Waggermeyer

Tony Hancock

as Lt. Wilfred Cartroad

Peter Sellers

as Pvt. Goffin

Clive Morton

as Gen. Sir Cuthbert Grahame-Foxe

June Thorburn

as Veronica Bellamy

Maureen Swanson

as Joanne Delamere

Peter Martyn

as Lt. John Broke

Bill Fraser

as Pvt. Slee

Edward Lexy

as Capt. Ledger

Barry MacKay

as R.S.M. Benson

Donald Pleasence

as Cpl. Martin (as Donald Plesance)

Eric Sykes

as Pvt. Waterhouse

Michael Trubshawe

as A.D.C.

Maureen Pryor

as Miss Marigold

Donald Hewlett

as Lincoln Green

Reginald Hearne

as Sgt. Spurway