the king's curse and the constant princess

Elizabeth, the queen, tells Catherine that the brother of her cousin, Maggie Pole, was beheaded because Catherine's mother, Isabella, would only pledge Catherine's hand in marriage if there were no other claimants to England's throne. She later learns it was Arthur's younger brother, Harry, who exchanged letters with her. When she meets Arthur, Prince of Wales, Catherine is disappointed that he isn't as romantic in person as he was in his letters. October – November 1501: Catherine arrives in England.

Matt Carr (part 1) and Theo Ancient (part 2) as Henry Pole.

Arthur Bateman (part 1) and Clark Butler (part 2) as Reggie Pole.

Mimi De Winton (part 1) and Amelia Gething (part 2) as Ursula Pole.

Jordan Renzo as Charles 'Charlie' Brandon.

Richard Pepper as Thomas Boleyn, Earl of Wiltshire.

Nadia Parkes as Rosa de Vargas, a lady-in-waiting to Catherine of Aragon.

Ruairi O'Connor as Harry, Duke of York and, later, King Henry VIII of England.Stephanie Levi-John as Lina de Cardonnes, a lady-in-waiting to Catherine of Aragon.Charlotte Hope as Catherine of Aragon and, later, Queen Catherine of England.Chloe Harris as Elizabeth 'Bessie' Blount.Alba Galocha as Queen Joanna of Castile.

Antonio de la Torre as Ferdinand II of Aragon.Elliot Cowan as King Henry VII of England.Aaron Cobham as Oviedo, one of Catherine of Aragon's guards.Daniel Cerqueira as De Fuensalida, the Spanish ambassador to England.Laura Carmichael as Margaret 'Maggie' Pole.Alicia Borrachero as Queen Isabella of Castile.Isla Merrick-Lawless portrays a younger Princess Mary. When Arthur dies suddenly, her destiny as the one who will bring peace between Spain and England seems in doubt, until she sets her sights on Prince Henry. Catherine is horrified to learn that Arthur's younger brother, the arrogant Henry, Duke of York, is the author of the romantic correspondence she has received. Unwelcome by some, she and her diverse court, including her lady-in-waiting Lina, who is of Moorish ancestry, struggle to adapt to English customs.

Teenaged princess Catherine of Aragon, daughter of Spanish rulers Isabella and Ferdinand, finally travels to England, to meet her husband by proxy, Arthur, Prince of Wales, heir apparent of Henry VII of England, to whom she has been betrothed since she was a child.

The king's curse and the constant princess