Errol Flynn

Captain Geoffrey Thorpe

Brenda Marshall

Doña Maria Alvarez de Cordoba

Claude Rains

Don José Alvarez de Cordoba

Donald Crisp

Admiral Sir John Burleson

Flora Robson

Queen Elizabeth

Alan Hale

Carl Pitt

Henry Daniell

Lord Wolfingham

Una O'Connor

Miss Latham

James Stephenson

Abbott

Gilbert Roland

Capt. Lopez

William Lundigan

Danny Logan

Montagu Love

King Philip II

Clyde Cook

Walter Boggs

Fritz Leiber

Inquisitor

Francis McDonald

Kroner

Pedro de Cordoba

Capt. Mendoza

Ian Keith

Peralta

Jack La Rue

Lt. Ortega

Halliwell Hobbes

Astronomer

Alec Craig

Chartmaker

Victor Varconi

Gen. Aguirre

Robert Warwick

Frobisher

Harry Cording

Slavemaster

Herbert Anderson

Eph Winters

Mary Anderson

Maid of Honor

Whit Bissell

Gate Guard at Palace Entrance

Edgar Buchanan

Ben Rollins

Michael Harvey

Sea Hawk

Leyland Hodgson

Officer

Stuart Holmes

(uncredited)

Dave Kashner

Whipper

Colin Kenny

Officer

Lester Matthews

Guard Officer

Gerald Mohr

Spanish Messenger

Leonard Mudie

Castle Sentry

Nestor Paiva

First Slavemaster

Jack Richardson

(uncredited)

Jay Silverheels

Native Lookout

John Sutton

Captain of the Guard

Anthony Warde

Whipper

Leo White

(uncredited)

Frank Wilcox

Martin Barrett

Frederick Worlock

Darnell

Harry Worth

Spanish Officer

J.M. Kerrigan

Eli Matson

Jim Corey