Milly Alcock, who has played Rhaenyra Targaryen as a teenager, will be replaced by Emma D’Arcy.
Emily Carey will be replaced by Olivia Cooke in the role of Alicent Hightower.
Savannah Steyn, who herself replaced younger actor Nova Foueillis-Mosé in the role of Laena Velaryon for Episode 5, will be replaced by Nanna Blondell.
And Theo Nate, who has played the teen Laenor Velaryon since Episode 3 (after Matthew Carver played him as a child), will be replaced by John Macmillan — who we are yet to see any images of in costume.
It will be a big adjustment to see the younger actors depart, especially Milly and Emily, who have played two of the most central roles in House of the Dragon so far.
Milly has taken Rhaenyra from being a relatively carefree young princess through to a grief-stricken girl, an angry teen, a rebellious (and horny) young woman, and a strategic player emerging into her own power.
Emily Carey, meanwhile, has seen Alicent through her journey from naive teen to miserable child-bride and depressed young mother to cool and calculating queen.
And while Theo and Savannah didn’t get a lot of screentime in their respective roles as Laenor and Laena, they still had standout moments that helped audiences connect with the characters.
A lot of fans are sharing their appreciation for the outgoing actors…