- Esme Creed-Miles
- Â Hanna 22 episodes, 2019-2021
- Mireille Enos
- Â Marissa / ... 22 episodes, 2019-2021
- Áine Rose Daly
- Â Sandy Phillips / ... 16 episodes, 2019-2021
- Cherrelle Skeete
- Â Terri Miller 14 episodes, 2020-2021
- Dermot Mulroney
- Â John Carmichael 13 episodes, 2020-2021
- Joel Kinnaman
- Â Erik / ... 12 episodes, 2019-2021
- Yasmin Monet Prince
- Â Clara Mahan / ... 11 episodes, 2019-2020
- Gianna Kiehl
- Â Jules Allen 10 episodes, 2020-2021
- Sèverine Howell-Meri
- Â Helen Young 8 episodes, 2020-2021
- Anthony Welsh
- Â Leo Garner 8 episodes, 2020
- Justin Salinger
- Â Carl Meisner 7 episodes, 2019-2021
- Clea Martin
- Â Jessie - Girl 233 7 episodes, 2020-2021
- Ray Liotta
- Â Gordon Evans 6 episodes, 2021
- Katie Clarkson-Hill
- Â Joanne McCoy 6 episodes, 2020
- Ellen Evans
- Â Laura - Girl 261 6 episodes, 2020
- Khalid Abdalla
- Â Jerome Sawyer 6 episodes, 2019-2020
- Pia Hagen
- Â Charlie - Girl 228 6 episodes, 2020
- Mia Jenkins
- Â Danielle Marks 6 episodes, 2020
- Ria Lopez
- Â Nina - Girl 256 6 episodes, 2020
- Joanna Kulig
- Â Johanna 6 episodes, 2019-2021
- Taylor Napier
- Â Chuck 6 episodes, 2021
- Chloe Pirrie
- Â Brianna Stapleton 6 episodes, 2021
- Sam Swainsbury
- Â Ethan Williams 6 episodes, 2021
- Gabriel Akuwudike
- Â Max Kaplan 5 episodes, 2021
- Adam Bessa
- Â Abbas Naziri / ... 5 episodes, 2021
- Rhianne Barreto
- Â Sophie 5 episodes, 2019
- Félicien Juttner
- Â Olivier 5 episodes, 2019
- Giles Norris-Tari
- Â Benoit 5 episodes, 2019
- Lyndsey Marshal
- Â Rachel 4 episodes, 2019
- Mark Bazeley
- Â Robert Gelder 4 episodes, 2020-2021
- David Avery
- Â Stephen Mannion 4 episodes, 2020-2021
- Kemaal Deen-Ellis
- Â Jay 4 episodes, 2019
- Phaldut Sharma
- Â Tom 4 episodes, 2019
- Benno Fürmann
- Â Dieter 4 episodes, 2019
- Trent Garrett
- Â Taylor 4 episodes, 2021
- Noah Taylor
- Â Dr. Kunek 3 episodes, 2019
- Ike Bennett
- Â Ray 3 episodes, 2020
- Vikash Bhai
- Â Dev 3 episodes, 2021
- Dan Cade
- Â Lee 3 episodes, 2021
- Andy Nyman
- Â Jacobs 3 episodes, 2019
- Katharina Heyer
- Â Elsa 3 episodes, 2019
- Wiebke Frost
- Â Lena Behr 3 episodes, 2021
- Leonard Rosik
- Â Armin 3 episodes, 2019
- Daniela Hirsh
- Â Waitress 3 episodes, 2021
- Leo Farahwaschy
- Â Bijan 3 episodes, 2019
- JosefÃna Krycnerová
- Â Young Marissa 3 episodes, 2021
- Léann Hamon
- Â Nadiya 3 episodes, 2021
- Caitlin Innes Edwards
- Â Grant 3 episodes, 2020-2021
- Antonio Magro
- Â Larry Robins / ... 3 episodes, 2020
- Sam C. Wilson
- Â Costigan 3 episodes, 2019
- Flora Nicholson
- Â Kenton 3 episodes, 2021
- Angela Sari
- Â Kat Gelder 3 episodes, 2020
- Claudia Trujillo
- Â Teresa 3 episodes, 2020
- Natasha Atherton
- Â Kim 2 episodes, 2020
- Hannah Azuonye
- Â Virginie 2 episodes, 2021
- Emma D'Arcy
- Â Sonia Richter 2 episodes, 2020
- Óscar Casas
- Â Juan 2 episodes, 2020
- Anna Comet
- Â Metropole Receptionist 2 episodes, 2020
- Klara Cibulova
- Â Zofia 2 episodes, 2021
- Henry Davis
- Â Guard 1 2 episodes, 2020
- Dempsey Bovell
- Â Benson 2 episodes, 2021
- Victor Dohlsten
- Â Ryder 2 episodes, 2021
- Sammy Broly
- Â Jacques 2 episodes, 2021
- Aleksandr Gorchilin
- Â Arvo 2 episodes, 2019-2021
- Amira El Sayed
- Â Anne / ... 2 episodes, 2021
- Stefan Rudolf
- Â Rudi 2 episodes, 2019
- Joana Borja
- Â Ellie 2 episodes, 2021
- Jasmine Breinburg
- Â Girl 217 2 episodes, 2019
- Dorothy Atkinson
- Â Therapist 2 episodes, 2019
- Ziad Jallad
- Â Hafeez 2 episodes, 2020
- Gamba Cole
- Â Anton 2 episodes, 2019
- Eduardo Lloveras
- Â Bernat 2 episodes, 2020
- Michelle Duncan
- Â False Marissa 2 episodes, 2019-2021
- Leo Flanagan
- Â Dan 2 episodes, 2019
- Klara Low
- Â Military Doctor / ... 2 episodes, 2019-2021
- Andrea Deck
- Â Carlsson 2 episodes, 2019
- Narges Rashidi
- Â Sima 2 episodes, 2019
- Varada Sethu
- Â CIA Analyst McArthur 2 episodes, 2019
- Ursula Werner
- Â Sara Heller 2 episodes, 2019
- Gary Anthony Stennette
- Â UTRAX Man / ... 2 episodes, 2020-2021
- Tahnee Nordegg
- Â Lisa 2 episodes, 2021
- Antoine Mathieu
- Â Louis Dumont 2 episodes, 2020
- Camille Moutawakil
- Â Aurore 2 episodes, 2021
- Osi Okerafor
- Â Utrax Security Officer Jones 2 episodes, 2019
- Maria Pau Pigem
- Â Spanish Landlady 2 episodes, 2020
- Károly Mészáros
- Â Dieter's Truck Driver / ... 2 episodes, 2019
- Ross O'Hennessy
- Â Camp G Guard 2 2 episodes, 2020
- Clarisse Normand
- Â Monica Gastner 2 episodes, 2020
- Russ Bain
- Â CIA Officer Sanchez 2 episodes, 2019-2021
- Jenn Kirk
- Â Pioneer Doctor 2 episodes, 2021
- Bruno Oro
- Â Lecturer 2 episodes, 2020
- Guy Roberts
- Â Brody 2 episodes, 2021
- Gemma Wallace
- Â Sadie - Trainee 219 2 episodes, 2020
- Claudia Toth
- Â Morgue Attendant 1 episode, 2019
- Victor Ade
- Â Guard 3 1 episode, 2020
- Luis Angulo
- Â Guy in Opium 2 1 episode, 2020
- Antoine Blanquefort
- Â Belgian Police Officer 1 episode, 2020
- Marius Bizau
- Â Hotel Receptionist 1 episode, 2020
- Lukás Bech
- Â Austrian Farmer 1 episode, 2021
- Noof Ousellam
- Â Agent Turner 1 episode, 2019
- Peter Sótonyi
- Â Kid at Quarry 1 episode, 2019
- Alex Bhat
- Â Utrax Employee 1 episode, 2020
- Matthias Peikert
- Â Policeman in Bar 1 episode, 2019
- Jamal Valentin Larry
- Â Kid at Quarry 1 episode, 2019
- Stephanie Brush
- Â Vienna Local 1 episode, 2021
- Ulli Ackermann
- Â Franz 1 episode, 2019
- Yasmin Mwanza
- Â CIA Female Guard 1 episode, 2019
- Issah Jacob Larry
- Â Kid at Quarry 1 episode, 2019
- Beatrice Engel
- Â Romanian Mother 1 episode, 2020
- Ernesto Collado
-  Raol González 1 episode, 2020
- Béla Gabor Lenz
- Â Dealer 1 episode, 2019
- Zoltán Vandor Toth
- Â Satellite Security Man 1 episode, 2019
- Viet Hung Vu
- Â Kid at Quarry 1 episode, 2019
- Georgia Goodman
- Â Suited Woman at Trial 1 episode, 2020
- Jim High
- Â Pioneer Guard Hans 1 episode, 2021
- Tom Mothersdale
- Â Head of Ops 1 episode, 2019
- Leonie Parusel
- Â Newscaster 1 episode, 2019
- Zsombor Burger
- Â Kid at Quarry 1 episode, 2019
- Jeff Fritz
- Â Senior Pioneer Guard 1 episode, 2021
- Alvar Goetze
- Â German Boy 1 episode, 2019
- Belén Fabra
-  Marta Ferrán 1 episode, 2020
- Noham Edje
- Â Felix 1 episode, 2020
- Ruby Crepin-Glyne
-  Student Compère 1 episode, 2021
- Patrick Dross
- Â Franz 1 episode, 2021
- Peter Ferdinando
- Â Lukas 1 episode, 2019
- Gyula Benedek
- Â Romanian Truck Driver 1 episode, 2019
- Steve Howard
- Â Utrax Officer 1 1 episode, 2020
- Roy McCrerey
- Â Pioneer Lobby Guard 1 episode, 2021
- Dániel Tóth
- Â CIA Monitor 1 episode, 2021
- Gary Finan
- Â US Military Officer 1 episode, 2019
- Daniel Teleky Toth
- Â CIA Monitor 1 episode, 2019
- Laura Martuscelli
- Â Tutor 1 episode, 2020
- Alexandra Szucs
- Â CIA Officer 1 episode, 2019
- Sándor Bencze
- Â Romanian Police 1 episode, 2019
- Raphael Fülöp
- Â Policeman One 1 episode, 2019
- Valene Kane
- Â Nicola Gough 1 episode, 2020
- Pedro Leandro
- Â Jamal 1 episode, 2020
- Tasiana Mevong
- Â Samira Elouassi 1 episode, 2020
- Lukas Johne
- Â Policeman Two 1 episode, 2019
- Timothy Knightley
- Â Examining Officer 1 episode, 2020
- Mia Moon
- Â Tour Party Leader 1 episode, 2020
- Anna Kameníková
-  Katerina Svobodová 1 episode, 2021
- Anna Devlin
- Â Gina 1 episode, 2019
- Benjamin Stoll
- Â Army Patrol One 1 episode, 2019
- Stephen Lee
- Â Camp G Guard 1 episode, 2020
- Sebastian Jacques
- Â Check In Official 1 episode, 2021
- Moncref Korriche
- Â Community Leader 1 episode, 2021
- Michael Epp
- Â Military Attache 1 episode, 2019
- Victor Rebull
- Â Guy in Opium 1 1 episode, 2020
- Reece Lyons
- Â Pearl 1 episode, 2020
- Peter Hosking
- Â Neighbour 1 episode, 2021
- Simon Cotton
- Â CIA Officer Carter 1 episode, 2019
- Adrián Lòpez
- Â Port Security Officer 1 episode, 2019
- Clara Segura
- Â Alba Paredes 1 episode, 2020
- Faisal Mohammed
- Â Utrax Driver 1 episode, 2020
- Adesuwa Oni
- Â Guard 4 1 episode, 2020
- Karen Gagnon
- Â Utrax Nurse 1 episode, 2019
- Derek Horsham
- Â Sawyer's Agent 1 episode, 2019
- Theresa Sophie Albert
- Â Hotel Concierge 1 episode, 2019
- Botond Csillag
- Â German Check-In 1 episode, 2019
- Paddy Rowan
- Â Young Guard 1 episode, 2020
- Burt Matthew James
- Â Pioneer Guard 1 1 episode, 2021
- James Backway
- Â Johnson 1 episode, 2019
- Kristen Alminta
- Â Utrax Guard 1 episode, 2019
- Cosmina Salomia
- Â Romanian Girl 1 episode, 2020
- Laila Mnii
- Â Trial Admin Assistant 2 1 episode, 2020
- Jean-Emmanuel Pagni
- Â Lecturer 1 episode, 2021
- Archie Renaux
- Â Feliciano 1 episode, 2019
- Ãgnes Krasznahorkai
- Â Dieter's Neighbour 1 episode, 2019
- Hannah Boyde
- Â Family Mother 1 episode, 2019
- Skandar Amini
- Â Kurdish Boy 1 episode, 2019
- Gabi Ferencz
- Â Hotel Receptionist 1 episode, 2019
- Ellie Piercy
- Â Bethany McGovern 1 episode, 2020
- Mariona Tena
- Â Admin Woman 1 episode, 2020
- Jérôme Soufflet
- Â Alain 1 episode, 2020
- Claudia Graf
- Â Orderly 1 episode, 2021
- Wayne Brett
- Â Doorman 1 episode, 2019
- Gertrude Thoma
- Â German Hostel Receptionist 1 episode, 2019
- Michael Pitthan
- Â German Man 1 episode, 2021
- Damian Odess-Gillett
- Â Radio Op 1 1 episode, 2021
- Péter Fancsikai
- Â Concierge 1 episode, 2019
- Juri Padel
- Â Barman 1 episode, 2019
- Loretta Massé
- Â Family Kid 1 episode, 2019
- Nico Rao Pimparé
- Â Trial Admin Assistant 1 1 episode, 2020
- Mama Prassinos
- Â Sylvie 1 episode, 2021
- Hugh O'Shea
- Â Jennings 1 episode, 2021
- Aleksandar Mikic
- Â Emil Prodna 1 episode, 2019
- Heather Coombs
- Â Speaker 1 episode, 2019
- Alex Frost
- Â Immigration Officer 1 episode, 2019
- Sinead Phelps
- Â Pioneer Guard 2 1 episode, 2021
- Jiri Vales
- Â Bar Owner 1 episode, 2021
- Martin Stange
- Â Policeman at Hotel 1 episode, 2019
- Lucy Aarden
- Â Assistant 1 episode, 2019
- Cristina Catalina
- Â Maria Prodna 1 episode, 2019
- Colin Stinton
- Â Tom Kaladski 1 episode, 2020
- Jake Zahradnik
- Â Canadian Journalist 1 episode, 2021
- Martin Bergmann
- Â Policeman in Van 1 episode, 2019
- Sonnyboy Skelton
- Â Kid at Conference 1 episode, 2019
- Audry Marodi
- Â Emil's Child 1 episode, 2019
- Aimee Barrett
- Â Hotel Staff 1 episode, 2019
- Roland Csikkel
- Â Emil's Child 1 episode, 2019
- Leander Vyvey
- Â Vandervelde 1 episode, 2020
- Julie Weber
- Â German Woman 1 episode, 2021
- Declan Hannigan
- Â Hotel Staff Two 1 episode, 2019
- Jill Winternitz
- Â Rachel 1 episode, 2020
- Richard Price
- Â Shop Assistant 1 episode, 2019
- Rocky Brower
- Â Rodriguez 1 episode, 2020
- Osman Findik
- Â CIA Agent unknown episodes
- Amy Marie Campbell
- Â Sabrina - Girl 280 (uncredited) 5 episodes, 2020
- Sarah Petrick
- Â Student (uncredited) 2 episodes, 2020
- Ellis Rose Rother
- Â Girl 282 (uncredited) 2 episodes, 2020
- Joe Kovalik Jr.
- Â Henchman (uncredited) 1 episode, 2019
- Balázs Lengyel
- Â Military Doctor 2 (uncredited) 1 episode, 2019
- Balázs Veres
- Â Trainstation Passenger (uncredited) 1 episode, 2019
- Peter Brooke
- Â Interrogator (uncredited) 1 episode, 2020
- Stephen Samson
- Â Utrax Swat (uncredited) 1 episode, 2020
- David Evestaff
- Â Soldier (uncredited) 1 episode, 2020
- Kemal Shah
- Â Passway Visitor (uncredited) 1 episode, 2020
- Akira Lee Watanabe
- Â Attendant (uncredited) 1 episode, 2020
- Rhys Downie
- Â Passerby (uncredited) 1 episode, 2020
- Paul S
- Â SWAT (uncredited) 1 episode, 2020
- Ozzy Chetin
- Â Pioneer Operative (uncredited) 1 episode, 2021
- Toby Vincer
- Â Student (uncredited) 1 episode, 2021