Know the Cast & Characters: ‘House of the Dragon’

The House of the Dragon cast features Paddy Considine, Matt Smith and Emma D’Arcy. This info article contains minor spoilers and character details for Ryan Condal and George R. R. Martin’s Game of Thrones prequel series on HBO. Check out more streaming guides in Vague Visages’ Know the Cast section.

House of the Dragon follows the Targaryen family as they rule over the Seven Kingdoms. When the Queen passes away during childbirth, the King worries about not having a male heir. The narrative chronicles the rise of Rhaenyra Targaryen, a princess who strategizes against her male and female enemies. Here’s every main performer and character in House of the Dragon.

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House of the Dragon Cast: Paddy Considine as Viserys Targaryen

Character Profile: The King of the Seven Kingdoms. He seeks a male heir and believes that dragons are an illusion. Viserys chooses a daughter as his successor.

Considine’s Resume: Johnny in In America (2002), Richard in Dead Man’s Shoes (2004), Steven Prince in The World’s End (2013), Father John Hughes in Peaky Blinders (2016), Claude Bolton in The Outsider (2020)

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House of the Dragon Cast: Matt Smith as Daemon Targaryen

Character Profile: Viserys’ brother. He is the commander of the City Watch. Daemon rides a dragon named Caraxes and has a bad reputation.

Smith’s Resume: The Doctor in Doctor Who (2010-2020), Philip, Duke of Edinburgh in The Crown (2016-17), Charles Manson in Charlie Says (2018), Mark Essworth in His House (2020), Jack in Last Night in Soho (2021)

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House of the Dragon Cast: Emma D’Arcy as Rhaenyra Targaryen

Character Profile: Viserys’ eldest child. She narrates the beginning of the series but doesn’t appear in the first episode.

D’Arcy’s Resume: Naomi Richards in Wanderlust (2018), Emma D’Arcy in Truth Seekers (2020), Hazel in Misbehaviour (2020), Sonia Richter in Hanna (2020), Emma Hobday in Mothering Sunday (2021)

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House of the Dragon Cast: Rhys Ifans as Otto Hightower

Character Profile: The Hand of the King. He looks after the best interests of House Targaryen. Otto clashes with Daemon.

Ifans’ Resume: Spike in Notting Hill (1999), Earl of Oxford in Anonymous (2011), The Lizard/Dr. Curt Connors in The Amazing Spider-Man (2012), Hector DeJean in Berlin Station (2016-19), Corbin O’Brian in Snowden (2016)

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House of the Dragon Cast: Steve Toussaint as Corlys Velaryon

Character Profile: A famous explorer. He believes that criminals should fear the City Watch. Corlys offers advice to House Targaryen.

Toussaint’s Resume: Hunter Squad Leader in Judge Dredd (1995), John McGuire in Mutant Chronicles (2008), Seso in Prince of Persia: The Sands of Time (2010), FBI Dept. Director #1 in Point Break (2015), Kenneth Logan in Small Axe “Red, White and Blue” (2020)

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House of the Dragon Cast: Eve Best as Rhaenys Targaryen

Character Profile: Corlys’ wife and Viserys’ cousin. In the past, she hoped to be King Jaehaerys’ heir. Rhaenys is known as “The Queen Who Never Was.”

Best’s Resume: Eleanor O’Hara in Nurse Jackie (2009-15), Wallis Simpson in The King’s Speech (2010), Yvonne Encanto in Up All Night (2012), Anna Clayton in Lucky Man (2016-17), Farah Dowling in Fate: The Winx Saga (2021)

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House of the Dragon Cast: Sonoya Mizuno as Mysaria

Character Profile: A dancer. She colludes with Daemon.

Mizuno’s Resume: Kyoko in Ex Machina (2014), Caitlin in La La Land (2016), Azumi Fujita in Maniac (2018), Humanoid & Katie in Annihilation (2018), Lily Chan in Devs (2020)

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House of the Dragon Cast: Fabien Frankel as Criston Cole

Character Profile: A swordsman. He unhorses Baratheon knights in the first episode.

Frankel’s Resume: Fabien in Last Christmas (2019), Theo Sipowicz in NYPD Blue (2019), Dominique Renelleau in The Serpent (2021), Gaspar Chevrolet in An Uncandid Portrait (2021)

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House of the Dragon Cast: Milly Alcock as Young Rhaenyra Targaryen

Character Profile: The heir to the Iron Throne. She smells like a dragon and has a tight relationship with her uncle Daemon. Young Rhaenyra protects the Song of Ice and Fire.

Alcock’s Resume: Isabella Barrett in High Life (2017), Maya Nordenfelt in Fighting Season (2018), Meg in Upright (2019-), Sam Serrato in Reckoning (2019-20), Jenny McGinty in The Gloaming (2020)

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House of the Dragon Cast: Emily Carey as Young Alicent Hightower

Character Profile: Otto’s daughter and Young Rhaenyra’s best friend. She feels disappointed by people in her inner circle. Young Alicent seeks happiness after the death of her mother.

Carey’s Resume: Grace Beauchamp in Casualty (2014-), Diana — Age 12 in Wonder Woman (2017), Young Lara — 14 Years Old in Tomb Raider (2018), Mika in Get Even (2020), Anne Frank in Where Is Anne Frank (2021)

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House of the Dragon Cast: Graham McTavish as Harrold Westerling

Character Profile: The Lord Commander of the Kingsguard. He looks after the best interests of Young Rhaenyra.

McTavish’s Resume: Lewis in Rambo (2008), Dwalin in The Hobbit Movie Franchise (2012-14), The Saint of Killers in Preacher (2016-19), Sigismund Dijkstra in The Witcher (2021), Alan Drummond in Blood Red Sky (2021)

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The House of the Dragon cast also includes Olivia Cooke (Me and Earl and the Dying Girl, Ready Player One), David Horovitch (The Young VictoriaMr. Turner), Bill Paterson (The Witches, Miss Potter), Gavin Spokes (Hitmen, The Ipcress File), Ryan Corr (Wolf Creek 2Holding the Man), Jefferson Hall (Devs, Tenet) and Matthew Needham (The Ritual, Sanditon).

Q.V. Hough (@QVHough) is Vague Visages’ founding editor.