Paddy Considine King Viserys Targaryen Actor Emma D'Arcy Princess Rhaenyra Targaryen Actor Matt Smith Prince Daemon Targaryen Actor Steve Toussaint Lord Corlys Velaryon ("The Sea Snake") Actor Olivia Cooke Alicent Hightower Actor Rhys Ifans Otto Hightower Actor Eve Best Princess Rhaenys Targaryen Actor Fabien Frankel Ser Criston Cole Actor Sonoya Mizuno Mysaria Actor George R.R. Martin Executive Producer Ryan Condal Executive Producer, Writer Charmaine De Grate Writer, Co-Executive Producer Miguel Sapochnik Executive Producer Vince Gerardis Executive Producer Sara Hess Executive Producer, Writer Ron Schmidt Executive Producer Clare Kilner Director Geeta Patel Director Greg Yaitanes Director David Hancock Co-Executive Producer Jocelyn Diaz Consulting Producer