Vivien Leigh

Emma, Lady Hamilton

Laurence Olivier

Lord Horatio Nelson

Alan Mowbray

Sir William Hamilton

Sara Allgood

Mrs. Cadogan-Lyon

Gladys Cooper

Lady Francis Nelson

Henry Wilcoxon

Captain Hardy

Heather Angel

Mary Smith

Halliwell Hobbes

Rev. Nelson

Gilbert Emery

Lord Spencer

Miles Mander

Lord Keith

Ronald Sinclair

Josiah

Luis Alberni

King of Naples

Norma Drury

Queen of Naples

Olaf Hytten

Gavin

Juliette Compton

Lady Spencer

Guy Kingsford

Captain Troubridge

Leonard Carey

Orderly (uncredited)

Alec Craig

Ship's Minister (uncredited)

George Davis

Gendarme (uncredited)

Payne B. Johnson

Boy (uncredited)

Russ Powell

Servant (uncredited)

Georges Renavent

Hotel Manager (uncredited)

Harry Strang

Ship's Medic (uncredited)