Lieutenant Horatio Hornblower
Commodore Sir Edward Pellew
Captain James Sawyer
Lieutenant Buckland
Lieutenant Bush
Lieutenant Archie Kennedy
Gunner Hobbs
Matthews
Styles
Dr. Clive
Midshipman Wellard
Captain Hammond
Captain Collins
Randall
Colonel Francisco Manuel Ortega (as Antonio Gil-Martinez)
Francois Lefanu
Señora Ortega
Sergeant Whiting
Clerk
Sebastian
Soldier (uncredited)