Mirren Mack (born 8 December 1997) is a Scottish actress, known for portraying Kaya on the BBC drama The Nest, Florence in Sex Education, Queenie in the National Theatre’s 2022 production of Small Island, and Merwyn in the Netflix miniseries The Witcher: Blood Origin.

Early life

Mack was born in Stirling, Scotland. From a young age, she was exposed to the entertainment industry, with her father, Billy, being an actor and her mother, Callan, being a drama tutor. Her younger sister, Molly, is also an actress. With sister Molly, she danced at the Glasgow 2014 Commonwealth Games. Mack went to Riverside Primary school and then Wallace High School in Stirling, In year five at High School, Mack attended the Dance School of Scotland's Musical Theatre. In 2016, she received the Dewar Arts Award for outstanding Scottish talent in the arts, enabling her the opportunity to audition for a place at the Guildhall School of Music and Drama, where she studied a Bachelor of Arts in Acting.

Career

Theatre

Mack made her professional acting debut in a stage production of Bat Boy as Mayor Maggie, at the Citizen's Theatre, for which she won the Musical Theatre Award and the drama award for her year.

Stage performances have included the play Wound by Philip Ridley in 2020. In 2022, as Ophelia in the Bristol Old Vic's adaption of Shakespeare's Hamlet. and the same year as Queenie in Small Island at the Royal National Theatre in London.

Film and television

In 2019, Mack made her television debut in three episodes of the Netflix series Sex Education as Florence. In 2020, Mack was cast in her first leading role as Kaya on the BBC drama series The Nest alongside Martin Compston and Sophie Rundle. Mack came out of Covid lockdown to appear in the seventh series of Portrait Artist of the Year on Sky Arts.

Mack began filming of the Netflix miniseries The Witcher: Blood Origin in August 2021, set in a time 1,200 years before The Witcher, and appeared in a main role as Princess Merwyn in a cast that includes Lenny Henry, Laurence O'Fuarain and Michelle Yeoh. The series was released on Netflix on 25 December 2022.

In 2024, she appeared as Katherine Villiers, Duchess of Buckingham in three episodes of the Sky Atlantic period drama Mary & George.

In September 2025, Mack was cast as Lucie Manette in the upcoming BBC One miniseries A Tale of Two Cities, adapted from the novel of the same name by Charles Dickens.

Filmography

Key
Denotes film or TV productions that have not yet been released

Film

YearTitleRoleNotes
2021LadybabyRoseShort film
MudlarksAnselShort film directed by Dominic Gilday
2022Blood RitesRoseShort film
The Painter & The PoetGemmaShort film
2023My HouseCarla
2025HeddaTabitha Greenwood
202628 Years Later: The Bone TempleCathy

Television

YearTitleRoleNotes
2020Sex EducationFlorenceRecurring role; 3 episodes
The NestKayaMain role; all 5 episodes
Portrait Artist of the YearHerself7th series
2021DalglieshMaggieEpisodes 3 and 4
2022The Witcher: Blood OriginMerwynMiniseries
2023The Doll FactoryRose WhittleMain role
2024StrikeEdie LedwellSeason 6; Recurring supporting role
Mary & GeorgeKatherine Villiers, Duchess of Buckingham3 episodes
2025Miss AustenDinahRecurring role; all 4 episodes
2026A Tale of Two CitiesLucie ManetteMain role
TBAAssassin's CreedTBARecurring role

Stage

YearTitleRoleDirector/writer/venue
2016Bat BoyMayor MaggieGraham Dickie
2017The SeagullArkadinaWyn Jones
The RelapseAmandaJonathan Humphreys
Talk to the DogGirlEllis Howard
OrphansHelenBrodie Ross
2018Twelfth NightViolaNiamh Cusack
The BachaiAgavePatsy Rodenburg
Phaedra's LovePhaedraWyn Jones
Oklahoma!Ado AnnieChristian Burgess
Mercury FurNazJohn Haidar
2019OrestesElectraCharlotte Gwinner
Merrily We Roll AlongJoanneMartin Connor
2020The Beast of Blue Yonder (aborted due to Covid)Chrissie / Mindy / Marilyn MonroePhilip Ridley
Wound (online play)Her (lead)Philip Ridley
2019OrestesElectraCharlotte Gwinner
Merrily We Roll AlongJoanneMartin Connor
2022Small IslandQueenieRufus Norris
2025My Master BuilderKaiaLila Raicek

Awards and nominations

YearAwardCategoryWorkResultRef.
2016Dewar Arts AwardOutstanding Scottish Talent in the ArtsWon
2020BAFTA Scotland AwardBest Actress - TelevisionThe NestNominated
2021British Short Film AwardsBest ActressMudlarksNominated
Best Acting Ensemble (shared with Naomi Preston-Low and Dominic Gilday)Won
Lift-Off Global Network, LondonWon

External links