As usual,Foundation’smassive time jumps mean a swath of new cast members, though many of the mainstays are still prevalent.Jared Harris (Hari Seldon), Lee Pace (Brother Day), Lou Llobell (Gaal Dornick), Laura Birn (Demerzel), Terrence Mann (Brother Dusk), and Cassian Bilton (Brother Dawn) all return in their roles. The only notable departure is Leah Harvey (Salvor Hardin).
Foundationseason 3’s storyis based on parts of the bookSecond Foundationand the latter half ofFoundation and Empire, providing us with some knowledge of who the new characters are.The Mule is the season’s main villain, as established by the trailers and season 2’s foreshadowing, but there are other characters who will be equally prevalent.
Pilou Asbæk as The Mule
Date Of Birth: August 18, 2025
Actor:Pilou Asbæk is a Danish actor whobroke big with international audiences for his role as Euron Greyjoy inGame of Thrones. Before that, however, he was recognized in Denmark for playing Kasper Juul on the acclaimed seriesBorgen. He’s since appeared in big films likeSalem’s LotandAquaman and the Lost Kingdom.
Aquaman and the Lost Kingdom
Borgen
Kasper Juul
Character:The Mule is one of Isaac Asimov’s most terrifying villains, with purposefully mysterious origins. He’s a mutant mentalic who can manipulate minds and who quickly establishes a foothold in the galaxy as a threat to both Foundation and Empire.
Cherry Jones as Foundation Ambassador Quent
Date Of Birth: July 23, 2025
Actor:Cherry Jones is anEmmy and Tony-winning actress who’s regarded for roles in iconic TV shows like24,Succession, andThe Handmaid’s Tale. She’s also appeared in beloved films likeSigns,Erin Brockovich,andThe Perfect Storm. She’s one of the most celebrated performers to join the show’s cast and will be exciting to watch.
24
The Handmaid’s Tale
Holly Maddox
Character:Quent is an original character inFoundationseason 3 who is sent to Trantor as an ambassador for the Foundation. Given the Foundation’s rapid expansion in the time between seasons, interacting with Empire is a tense job.
Brandon P. Bell as Han Pritcher
Date Of Birth: January 13
Actor:Brandon P. Bell is anAmerican actor who’s best known for his role in the Netflix original TV seriesDear White People. With two decades of acting experience, Bell has appeared in guest or background roles in titles likeMission: Impossible III,CSI: Crime Scene Investigation, and2 Broke Girls.
2 Broke Girls
Officer Mars
Character:Captain Han Pritcher is a member of the Foundation armed forces who goes to investigate the threat of the Mule.
Alexander Siddig as Dr. Ebling Mis
Date Of Birth: June 21, 2025
Actor:Alexander Siddig is aBritish actor who’s appeared in hit TV series likeStar Trek: Deep Space Nine,24,Game of Thrones, andGotham.He’s also starred in films like Syriana,Clash of the Titans, andHannibal.Foundationlooks to be one of his most exciting roles yet, playing a critical character from the books.
Hamri Al-Assad
Character:Dr. Ebling Mis is a self-taught psychohistorian and firm supporter of Hari Seldon’s work. He’s a descendant of Advocate Xylas, the prosecutor in Seldon’s trial fromFoundationseason 1.
Actor Alexander Siddig also played his character’s ancestor, Advocate Xylas, in season 1.
Foundation Season 3’s New Supporting Cast & Characters
Synnøve Karlsen as Bayta Mallow:Synnøve Karlsen is a British actress best known for her role on the BBC showCliqueand the miniseriesMiss Austen.
Cody Fern as Toran Mallow:Cody Fern is an Australian actor whom audiences may remember fromAmerican Horror StoryandAmerican Crime Story.
Tómas Lemarquis as Magnifico Giganticus:Tómas Lemarquis is an Icelandic character actor who can be recognized from films likeX-Men: Apocalypse.
Leo Bill as Mayor Indbur:Leo Bill is an English actor known for films like28 Days LaterandThe Girl with the Dragon Tattoo.
Troy Kotsur as Preem Palver:Troy Kotsuris an American actor whose role in the filmCODAearned him an Academy Award nomination for Best Supporting Actor.
