Ernest Clark

Father (Voice)

Abbot

Sir Philip Wentworth

Chorus

Hatche's Father

Lord Hunter

Fritsch

The Professor

Self

Mr. Huntley

Duke of Mannerton

Professor Geoffrey Loftus

Professor Loftus

Councilman

Roper

Chairman

The Brigadier

Col. Balsom

Marshall

Harold Grove

The Dean, The Very Reverend Lionel Pugh-Critchley

Air Marshal

French Police Inspector (uncredited)

Beauchamp

Finch McComas

Earl of Aldershot's solicitor

Minister

Pritchard

Dr. Pembury

Sir Basil Smeeton

Commander Trickett

Roberts

Sir George Noble

Professor Crankshaw

Stockbroker

Prison Governor

Police Doctor

Cracknell

Frederick

Mr. Hayes

Colonel Drew

Rex

M.P. (uncredited)

Ashton

Captain Ellis - 'Suffolk'

Cmdr. Bates

Inspector MacAndrew

Sir Charles Anderson

F. G. Fielding

Mr. Harvey

Major Adbury

Prosecutor at First Dreyfus Trial

Stryver

Barrister

Under Secretary

Maine

Wing Commander Beiseigel

Cmdr. Geoffrey Digby

Outer Party Announcer

Air Vice-Marshal The Hon. Ralph Cochrane G.B.E., K.C.B., A.F.C.

Dr. Warren

Bishop's Secretary

Dr. Parrish

Hammond

Councillor Albert Parker

Vaudeville Act