House of the Dragon 's new Aegon Targaryen actor has a Doctor Who connection

House of the Dragon 's new Aegon Targaryen actor has a Doctor Who connection

A new batch of photos from House of the Dragon episode 6, which airs this Sunday on HBO, have arrived — and fans of Doctor Who may recognize one of the actors making their debut.

After a time jump between episodes 5 and 6, we see that young Aegon II Targaryen, the first male heir of King Viserys Targaryen (Paddy Considine), has grown into a teen. That means there's an actor change after viewers saw the character as a toddler in previous episodes. Ty Tennant, 20, will now appear as Aegon in episode 6.

Ty Tennant is part of a Doctor Who dynasty. His grandfather is Peter Davison, the fifth Doctor on the long-running British sci-fi series. He's also the son of David Tennant, who played the 10th incarnation of the Doctor. David married Georgia Moffett after they met while shooting Doctor Who, in which Georgia played the genetically engineered daughter of David's Doctor. Ty is Georgia's son from a previous marriage, and David later adopted him.

House of the Dragon
House of the Dragon

Gary Moyes / HBO Ty Tennant stars as Aegon Targaryen in 'House of the Dragon' episode 6.

House of the Dragon marks the biggest role for Tennant yet. He previously acted in the film Tolkien and in the series Casualty, Doom Patrol, Around the World in 80 Days, and War of the Worlds.

Aegon is a major player in the events of House of the Dragon, which chronicles the action leading up to and during the Dance of the Dragons, the name the poets of Westeros gave to a devastating civil war that burned down the Targaryen empire.

Princess Rhaenyra Targaryen is named her father's heir to the Iron Throne, but as time goes on, King Viserys remarries and gives birth to Aegon, whom many in the realm think should be his successor as the firstborn male.

Spoiler alert: A teaser trailer for episode 6 shows Alicent, now the queen after marrying Viserys, telling her son, Aegon, "You will be our king."

David Tennant, Ty Tennant and producer Georgia Tennant attend a special screening of "You, Me And Him" at Charlotte Street Hotel on March 29, 2018 in London, England.
David Tennant, Ty Tennant and producer Georgia Tennant attend a special screening of "You, Me And Him" at Charlotte Street Hotel on March 29, 2018 in London, England.

Dave J Hogan/Getty Images 'House of the Dragon' star Ty Tennant poses with his parents, 'Doctor Who' alums David and Georgia Tennant.

It's unclear how long we will see Tennant in the Aegon role. Actor Tom Glynn-Carney will eventually take the lead as Aegon following more time jumps.

Episode 6 will also feature Emma D'Arcy and Olivia Cooke stepping into the roles of Rhaenyra and Alicent, respectively, after Milly Alcock and Emily Carey played the women in their teen years. D'Arcy and Cooke will maintain these roles, presumably, until the end of House of the Dragon.

See more photos from House of the Dragon episode 6 below.

House of the Dragon
House of the Dragon

Ollie Upton / HBO Emma D'Arcy and John MacMillan step into the roles of Rhaenyra Targaryen and Laenor Velaryon.

House of the Dragon
House of the Dragon

Ollie Upton / HBO Olivia Cooke now plays Alicent Hightower, as seen opposite Fabien Frankel's Ser Criston Cole.

House of the Dragon
House of the Dragon

Ollie Upton / HBO Alicent plays with her daughter, Princess Helaena (Evie Allen), on 'House of the Dragon.'

House of the Dragon
House of the Dragon

Gary Moyes / HBO Criston Cole (Fabien Frankel) watches over the young princes as they train.

House of the Dragon
House of the Dragon

Ollie Upton / HBO Shani Smethurst and Eva Ossei-Gerning appear as Baela and Rhaena Targaryen, the daughters of Laena Velaryon and Daemon Targaryen.

House of the Dragon
House of the Dragon

Ollie Upton / HBO Prince Daemon (Matt Smith) counsels his daughters.

House of the Dragon
House of the Dragon

Ollie Upton / HBO Daemon (Matt Smith) and Laena (Nanna Blondell)

House of the Dragon
House of the Dragon

Ollie Upton / HBO Rhaena Targaryen (Eva Ossei-Gerning) holds a dragon egg.

House of the Dragon
House of the Dragon

Ollie Upton / HBO Nanna Blondell as Laena Velaryon

House of the Dragon
House of the Dragon

Ollie Upton / HBO Matthew Needham appears as Larys Strong on 'House of the Dragon.'

House of the Dragon
House of the Dragon

Ollie Upton / HBO Ryan Corr plays Larys' brother Harwyn Strong.

House of the Dragon
House of the Dragon

Ollie Upton / HBO Gavin Spokes plays Lyonel Strong, Hand of the King.

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