Asa Butterfield
Otis Milburn (8 eps)
Gillian Anderson
Jean Milburn (8 eps)
Ncuti Gatwa
Eric Effiong (8 eps)
Emma Mackey
Maeve Wiley (8 eps)
Kedar Williams-Stirling
Jackson Marchetti (8 eps)
Connor Swindells
Adam Groff (8 eps)
Aimee Lou Wood
Aimee Gibbs (8 eps)
Alistair Petrie
Michael Groff (8 eps)
Mimi Keene
Ruby Matthews (7 eps)
Jim Howick
Colin Hendricks (7 eps)
Tanya Reynolds
Lily Iglehart (6 eps)
Deobia Oparei
Mr. Effiong (6 eps)
Simone Ashley
Olivia Hanan (6 eps)
Chaneil Kular
Anwar Bakshi (6 eps)
Rakhee Thakrar
Emily Sands (5 eps)
Samantha Spiro
Maureen Groff (5 eps)
Lisa Palfrey
Cynthia (4 eps)
Hannah Waddingham
Sofia Marchetti (4 eps)
Edward Bluemel
Sean Wiley (3 eps)
Dan Renton Skinner
Swimming Instructor (3 eps)
Sharon Duncan-Brewster
Roz Marchetti (3 eps)
Joe Wilkinson
Jeffrey (3 eps)
Jojo Macari
Kyle (3 eps)
Max Boast
Tom Baker (2 eps)
Alice Hewkin
Tanya (2 eps)
Dan Mersh
Harry (2 eps)
Kadeem Ramsay
OctoBoy (2 eps)
Lily Newmark
Ruthie (2 eps)
Daniel Ings
Dan (2 eps)
Doreene Blackstock
Beatrice Effiong (2 eps)
Adam Young
Birthday Twin (1 eps)
Lowri Palfrey
Simone McAllister (1 eps)
Tom Mackley
Liam (1 eps)
Zak Shukor
Dr. Atwan (1 eps)
Dominic Applewhite
Charlie (1 eps)
Lu Corfield
Sarah (1 eps)
Lily Frazer
Tiana (1 eps)
Jonny Amies
Sam (1 eps)
Olive Gray
Kate (1 eps)
Freddie Watkins
Otis' Client Without a Problem (1 eps)
Anjana Vasan
Abortion Clinic Protestor (1 eps)
Natasha Joseph
Abortion Clinic Nurse (1 eps)
Anne Kavanagh
Jean's Kegel Patient (1 eps)
Tom Colley
Thug (1 eps)
Aurora Burghart
Good Samaritan (1 eps)
Hannah Boyce
Harriet Anders (1 eps)
Ruben Cryer
Young Otis (1 eps)
Milly Thomas
Female Client (1 eps)
Ezra Furman
Band Singer (1 eps)
Daniel Adegboyega
Rydel (1 eps)
India Ria Amarteifio
Lizzie (1 eps)
Francis Johnson
Lizzie's Dad (1 eps)
Jason Baughan
Military Guy (1 eps)
Ann Queensberry
Lady in Checkout Line (1 eps)
Toby Williams
Tim (1 eps)
Femi Elufowoju Jr.
Prophet Joshua (1 eps)