- Lewis Tan - Tolya Yul-Bataar
- Jack Wolfe - Wylan Hendricks
- Anna Leong Brophy - Tamar Kir-Bataar
- Zoë Wanamaker - Baghra
- Ben Barnes - General Aleksander Kirigan / The Darkling
- Antonín Mašek - Alexei
- Sean Gilder - Dressen
- Genesis Lynea - Natacha
- Atanáz Babinchak - Liev
- Caroline Boulton - Petya
- Jim High - Sergeant Yure Kuznets
- Gordon Morris - Line Cook
- Mark C. Phelan - Gambler
- Narinder Samra - Rotty
- Lucy Sheen - Kerch Madame
- Roby Schinasi - Fjerdan Fighter
- Júlia Ubrankovics - Milana
- Roderick Hill - Oncle Bart
- Dean Lennox Kelly - Pekka Rollins
- Scott Alexander Young - Big Bolliger
- Micah Holmes - Poppy Cox
- Tom Fyans - Male Squaller
- David Wurawa - Edyck
- Kate Russell-Smith - Ravkan Woman
- Adam Boncz - Oprichnik Guard Semyov
- Klára Tolnai - Tabitha
- Deirdre Mullins - Tante Heleen
- István Juhász - Cobbet
- Harry Baxendale - Forich
- Erik Gyarmati - Boy Orphan
- Emma Bercovici - Girl Orphan
- Ken Vedsegaard - Druskelle Leader
- Sára Schmidt - Attendant
- Brian Bovell - Innkeeper
- Dóra Rimóczi - Kit Attendant
- Jonathan Peck - Novokribirsk Dealer
- Hon Ping Tang - Botkin
- Jacob Seelochan - Taster Boy
- Andy Burse - Dubrov
- Kaylan Teague - Young Alina
- Cody Molko - Young Mal
- Elizabeth Rider - Ana Kuya
- Kelly Banlaki - Raisa
- Gabrielle Brooks - Nadia Zhabin
- James Jaysen Bryhan - Archivist
- Márton Nagyszokolyai - Fjerdan Ammo Carrier
- Robert Beck - Quartermaster
- Michael Adamthwaite - General Nilsen
- Hugo Speer - Lieutenant Bohdan
- Kevin Eldon - The Apparat
- David Verrey - King Pyotr
- Georgia Reece - Queen Tatiana
- Jasmine Blackborow - Marie
- Pedro Lloyd Gardiner - Marko
- Saif Al-Warith - Oprichnik Officer
- Ágnes Bánfalvy - Old Ravkan Woman
- Andy Apollo - Pavel the Inferni
- Katrina Durden - Olga
- Howard Charles - Arken
- Kelly Gough - Polina the Inferni
- Wayne Brett - Merchant
- Owen Good - First Army Soldier
- Luke Pasqualino - David Kostyk
- Mark Springer - Zemeni Ambassador
- Luke Kaile - Vanya
- Lucy Griffiths - Luda
- Steven Hartley - Commander Chalikov
- Muki Zubis - Tidemaker
- James Hillier - Captain Churik
- Tom Weston-Jones - General Zlatan
- Simon Sears - Ivan
- Julian Kostov - Fedyor Kaminsky
- Johnny K. Palmer - Bartender
- Tam Dean Burn - Kerch Captain
- Nick Cornwall - Slaver
- Hannah Lee - Kerch Sailor 2
- Shaun Cowlishaw - Kerch Sailor 3
- Virág Bárány - Eshana
- Peta Cornish - Ravkan Woman
- Fflyn Edwards - Young Kaz
- Kembe Sorel - Pottery Vendor
- Katalin Lábán - Needlepoint Woman
- Seamus O'Hara - Sergeant Halsov
- Tommy Rodger - Jordie
- Jonathan Slinger - Constable Sem
- Zsuzsanna Száger - Female Refugee
- Drummond Money-Coutts - Magician
- Tumi Fani-Kayode - Miradi
- András Korcsmáros - Grevyen
- Pääru Oja - Mogens
- Shobhit Piasa - Vladim Gulav
- Tim Plester - Per Haskell
- Thue Ersted Rasmussen - Ahlgren
- Rachel Redford - Fruzsi
- István Rubóczki - Dime Lion #3
- Joanna McGibbon - Nadia
- Keir Charles - Colonel Raevsky
- Tamás Farkas - Kovu
- Taylor Fay - Alby Rollins
- Zoltán Hetényi - Hiemstra
- Gábor Matus - Hellgate Guard #2
- Alistair Nwachukwu - Adrik
- Christine Grace Szarkó - Nanny Rollins
- Edward Davis - Prince Vasily
- Máté Haumann - Constable Florian
- Tamás Hagyó - Kerch Sailor
- Panka Murányi - Indentured Woman
- Mészáros Piroska - Seamstress
- Kata Sarbó - Passing Woman
- Attila Szél - Croupier
- Harry Szovik - Patron
- Tuyen Do - Ohval Saran
- Simon Armstrong - The Disciple
- Louis Boyer - Dominik
- Vanessa Grasse - Vatra
- Rhoda Ofori-Attah - Aditi
- Mariann Hermányi - Grisha Woman
- Iván Orsányi - Bouncer
- Géza Kovács - Druskelle
Hugo Speer interpreta a Lieutenant Bohdan en la serie.
Jessie Mei Li interpreta a Alina Starkov en la serie.
Archie Renaux hace el papel de Malyen 'Mal' Oretsev.
Freddy Carter hace el papel de Kaz Brekker.
Amita Suman hace el papel de Inej Ghafa.
Kit Young interpreta a Jesper Fahey en la serie.
Patrick Gibson interpreta a Sturmhond / Nikolai Lantsov en la serie.
Daisy Head interpreta a Genya Safin en la serie.
Danielle Galligan hace el papel de Nina Zenik.
Calahan Skogman interpreta a Matthias Helvar en la serie.
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