Captain Horatio Hornblower R.N.

Capt. Horatio Hornblower R.N

Lady Barbara Wellesley

Lt. William Bush

Lt. Crystal

2nd Lt. Gerard

Midshipman Longley

Seaman Quist

RAdm. Sir Rodney Leighton

Polwheal (Hornblower's Batman)

Surgeon Gundarson

Mr. Harrison (Bosun)

Hernandez

El Supremo (Don Julian Alvarado)

Spanish Captain

Capt. Entenza

Col. Caillard - POW Escort

French Commandant

Hebe (Lady Barbara's Maid)

Mrs. McPhee (Hornblower's Housekeeper)

Adm. Lord Hood

Adm. McCartney

Crewman (uncredited)

Capt. Elliott (uncredited)

French Guard (uncredited)

Crewman (uncredited)

"Witch of Endor" French Mate (uncredited)

Maria Hornblower (voice) (uncredited)

"Lydia" Seaman (uncredited)

Spanish Officer (uncredited)

Crewman (uncredited)

Seaman (uncredited)

Lt. Woodford (uncredited)

French Corvette Captain (uncredited)

Crewman (uncredited)

Macrae (uncredited)