Peter Sellers as Dodger Lane

Maurice Denham as The Governor

Lionel Jeffries as Chief P.O. Sidney Crout

David Lodge as Jelly Knight

Bernard Cribbins as Lennie Price

Wilfrid Hyde-White as Soapy Stevens

Irene Handl as Mrs. Price

George Woodbridge as Chief P.O. Jenkins

Liz Fraser as Ethel

John Harvey as Governor Rockhampton Prison

Beryl Reid as Miss Pringle

Noel Hood as Miss Prescott

Myrette Morven as Miss Meakin

Edwin Brown as Warder Charlie

Cyril Chamberlain as Gate Warder (Day)

Wallas Eaton as Gate Warder (Night)

Andrew Downie as Garden Warder

Thorley Walters as Col. Parkright

Mario Fabrizi as Jones

Warren Mitchell as Tailor

Arthur Mullard as Fred

Vivienne Martin as Fred's Wife