Emily Watson
Mother Superior Valya Harkonnen
Olivia Williams
Reverend Mother Tula Harkonnen
Travis Fimmel
Desmond Hart
Jodhi May
Empress Natalya Arat Corrino
Sarah-Sofie Boussnina
Princess Ynez Corrino
Chloe Lea
Sister Lila
Chris Mason
Keiran Atreides
Shalom Brune-Franklin
Mikaela
Mark Strong
Emperor Javicco Corrino
Jade Anouka
Sister Theodosia
Edward Davis
Harrow Harkonnen
Josh Heuston
Constantine Corrino
Faoileann Cunningham
Sister Jen
Aoife Hinds
Sister Emeline
Barbara Marten
Sister Avila
Jessica Barden
Young Valya Harkonnen
Camilla Beeput
Reverend Mother Dorotea
Cathy Tyson
Raquella Berto-Anirul
Emma Canning
Young Tula Harkonnen
Charithra Chandran
Young Francesca
Yerin Ha
Young Kasha Jinjo
Sarah Oliver-Watts
Young Avila
Sarah Lam
Hagal Truthsayer
Lucy Russell
Gbangbala Truthsayer
Sam Pembroke
Bagrationi Noble
Earl Cave
Griffin Harkonnen
Tanya Moodie
Anirul (voice)
Mark Addy
Evgeny Harkonnen
Jihae
Kasha Jinjo
Brendan Cowell
Duke Ferdinand Richese
Flora Montgomery
Truthsayer Vera
Laura Howard
Duchess Orla Richese
Tessa Bonham Jones
Lady Shannon Richese
Gombó Viola Lotti
Dorotea's Disciple
Lorena Santana-Somogyi
Dorotea's Disciple
Callum Coates
Lord Hagal
Parker Sawyers
Baron Tojan Gbangbala
Sam Spruell
Horace
Karima McAdams
Sister Nazir
Janka József
Vernius Noble
