Andrew Ray

as Prof. Pigon

as PC Simon Farnaby-Green

as Conrad

as Wheeler, the mudlark

as Michael Swanton

as Duke of York

as Frankie

as Willy

as Major Otto Günsche

as Herbert Pocket

as Toby

as Brian Preston

as Clive Avon

as Roger Carson

as Jerry Wilde

as Percy Hayward

as Steve

as Cranmer Oakes

as Harry Pope

as Dr. John Reginald

as Leonard Bast

as Alfred Rydale

as Lt. Jack Dyson RFC

as Stevin