
The film is a historical drama set during the reign of Elizabeth I (Flora Robson), focusing on the English defeat of the Spanish Armada, whence the title. In 1588, relations between Spain and England are at the breaking point. With the support of Queen Elizabeth I, British sea raiders such as Sir Francis Drake regularly capture Spanish merchantmen bringing gold from the New World.

as Queen Elizabeth I of England

as King Philip II of Spain

as The Earl of Leicester

as Michael Ingolby

as Cynthia

as Lord Burleigh

as Elena

as Sir Richard Ingolby

as Mr. Lawrence Gregory

as Spanish Ambassador

as Don Miguel

as Don Pedro

as Don Escobal

as Adm. Valdez

as Hillary Vane

as Lord Amberley

as Lord Illingworth

as Sir James Tarleton

as Mr. Joseph Maddison

as Hatton

as French Ambassador

as Sir Humphrey Cooper

as Lady-in-Waiting

as Elena's Governess (uncredited)