Dean-Charles Chapman (born 7 September 1997) is an English actor. He is known for portraying Billy Elliot in the West End theatre production of "Billy Elliot the Musical", Tom Blake in Sam Mendes's film "1917", and Tommen Baratheon in the fourth, fifth and sixth seasons of the HBO drama series "Game of Thrones".

After playing the minor role of Martyn Lannister in the third season of "Game of Thrones", he replaced Callum Wharry in the major role of Tommen Baratheon, the young king of Westeros for the fourth, fifth, and sixth seasons of the show. With the rest of the cast, he was nominated for a Screen Actors Guild Award. In 2018, he played the role of Castor in the AMC series Into the "Badlands" for seven episodes, followed by a supporting role in the film "Blinded by the Light".

Chapman was born in Romford and raised nearby in Essex. He began working as a child model and actor at the age of four.

At the age of eight, Chapman was cast as "Small Boy" in Billy Elliot the Musical, and would later be promoted to the roles of Michael and finally the titular character, becoming the second-longest running cast member in the production. During his time on Billy Elliot, he worked alongside future Spider-Man actor Tom Holland, and had the opportunity to meet U.K. Prime Minister Gordon Brown with several other young actors in the play.

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