Cast & Guest Stars

House of the Dragon Season 3 Cast & Guest Stars

House of the Dragon Season 3 features a main cast of 20 including Matt Smith, Emma D'Arcy and Olivia Cooke, plus 24 guest stars across 8 episodes.

TV Show: House of the Dragon Season: 3 Network: HBO Release: 2026 ← Back to House of the Dragon Season 3 Main Cast: 20 Guest Stars: 24

Main Cast

House of the Dragon Season 3 Main Cast

20 Main CastAll characters →

Matt Smith

as Prince Daemon Targaryen

Appears in multiple episodes

Emma D'Arcy

as Queen Rhaenyra Targaryen

Appears in multiple episodes

Olivia Cooke

as Queen Alicent Hightower

Appears in multiple episodes

James Norton

as Lord Ormund Hightower

Appears in multiple episodes

Steve Toussaint

as Lord Corlys 'The Sea Snake' Velaryon

Appears in multiple episodes

Fabien Frankel

as Ser Criston Cole

Appears in multiple episodes

Matthew Needham

as Lord Larys 'Clubfoot' Strong

Appears in multiple episodes

Sonoya Mizuno

as Mysaria 'The White Worm'

Appears in multiple episodes

Tom Glynn-Carney

as King Aegon II Targaryen

Appears in multiple episodes

Ewan Mitchell

as Prince Aemond Targaryen

Appears in multiple episodes

Harry Collett

as Prince Jacaerys 'Jace' Velaryon

Appears in multiple episodes

Phia Saban

as Queen Helaena Targaryen

Appears in multiple episodes

Bethany Antonia

as Lady Baela Targaryen

Appears in multiple episodes

Jefferson Hall

as Lord Jason Lannister / Ser Tyland Lannister

Appears in multiple episodes

Abubakar Salim

as Alyn of Hull

Appears in multiple episodes

Clinton Liberty

as Addam of Hull

Appears in multiple episodes

Phoebe Campbell

as Lady Rhaena Targaryen

Appears in multiple episodes

Kurt Egyiawan

as Grand Maester Orwyle

Appears in multiple episodes

Freddie Fox

as Ser Gwayne Hightower

Appears in multiple episodes

Gayle Rankin

as Alys Rivers

Appears in multiple episodes

Guest Stars

House of the Dragon Season 3 Guest Stars

House of the Dragon Season 3 features 24 guest stars across its 8 episodes.

Phil Daniels

as Maester Gerardys

Max Wrottesley

as Ser Lorent Marbrand

Nicholas Jones

as Lord Bartimos Celtigar

Vincent Regan

as Ser Rickard Thorne

Tommy Flanagan

as Ser Roderick Dustin

Samson Kayo

as Mujja

James Doherty

as Cley

Jordon Stevens

as Elinda Massey

James Weber Brown

as TBA

Michelle Bonnard

as Sylvi

Simon Chandler

as High Septon

Tom Cullen

as Ser Luthor Largent

Barry Sloane

as Ser Adrian Redfort

Amanda Collin

as Lady Jeyne Arryn

Benjamin Evan Ainsworth

as Prince Daeron Targaryen

Oliver Coopersmith

as Janos

Cecily Cleeve

as TBA

Sarah Woodward

as Lady Sabitha Frey

Archie Barnes

as Lord Oscar Tully

Oscar Eskinazi

as Prince Joffrey Velaryon

Annie Shapero

as Alysanne Blackwood

Paul Kennedy

as Lord Jasper 'Ironrod' Wylde

Archie Barnes

as Ser Oscar Tully

Abigail Thorn

as Sharako Lohar

FAQ

Frequently Asked Questions

Who is in House of the Dragon Season 3?

The Season 3 main cast is Matt Smith as Prince Daemon Targaryen, Emma D'Arcy as Queen Rhaenyra Targaryen, Olivia Cooke as Queen Alicent Hightower, James Norton as Lord Ormund Hightower.

Who are the guest stars in House of the Dragon Season 3?

Notable guest stars in Season 3 include Phil Daniels as Maester Gerardys, Max Wrottesley as Ser Lorent Marbrand, Nicholas Jones as Lord Bartimos Celtigar, Vincent Regan as Ser Rickard Thorne, Tommy Flanagan as Ser Roderick Dustin.

Guides

Key Characters

In-depth character guides for the key characters of House of the Dragon Season 3.

Related House of the Dragon Guides

Episode Guide

House of the Dragon Season 3 Cast & Guest Stars

House of the Dragon Season 3 Main Cast

House of the Dragon Season 3 Guest Stars

Frequently Asked Questions

Key Characters

Related House of the Dragon Guides

House of the Dragon Season 3 Episode Guide

House of the Dragon Season 3 Episodes

House of the Dragon Season 2 Cast

House of the Dragon Show Guide