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)