The Square Peg

Norman Wisdom

Private Norman Pitkin / General Otto Schreiber

Honor Blackman

Junior Commander Lesley Cartland

Edward Chapman

Private Wilfred Grimsdale

Campbell Singer

Sergeant Loder

Hattie Jacques

Gretchen

Brian Worth

Henri Le Blanc

Terence Alexander

Captain Wharton

John Warwick

Colonel Layton

Arnold Bell

General Hunt

Victor Beaumont

Jogenkraut

André Maranne

Jean-Claude

Frank Williams

Captain Ford

Eddie Leslie

Medical Officer

Richard Marner

German Officer

John G. Heller

German Officer at Gatepost

Roger Avon

Workman (uncredited)