- Killian Scott - Eric Wardle
- Leo Bill - John Bristow
- Ann Akinjirin - DS Ekwensi
- Tara Fitzgerald - Tansy Bestigui
- Jessica Gunning - Holly Brockbank
- Suzanne Burden - Linda Ellacott
- Ben Crompton - Shanker
- Lia Williams - Liz Tassel
- Matt King - Jeff Whittaker
- Jeremy Swift - Owen Quine
- Andrew Brooke - Niall Brockbank
- Dominic Mafham - Jerry Waldegrave
- Peter Sullivan - Andrew Fancourt
- Tim McInnerny - Daniel Chard
- Joseph Quinn - Billy Knight
- Jack Greenlees - Sam Barclay
- Tezlym Senior-Sakutu - Rochelle Onifade
- Jack Monaghan - Text analyst
- Rob Callender - Ralph
- Abubakar Salim - Jonah Agyeman
- Shenagh Govan - Caroline
- Sophie Ward - Anna Phipps
- Lorna Gayle - Kim Sullivan
- Abigail Lawrie - Margot Bamborough
- Carys Bowkett - Cynthia (1980s)
- Ian Redford - Ted Nancarrow
- Linda Bassett - Joan Nancarrow
- Syrus Lowe - Max Priestwood
- Phill Langhorne - DI Simon Layborn
- Sarah Sweeney - Lucy
- Genevieve Hulme Beaman - Oonagh Kennedy (1970s)
- Morgan Jones - DI Bill Talbot
- Kate Davies-Speak - Joan Nancarrow (1980s)
- Kierston Wareing - Leda Strike
- Calvin A. Dean - Ted Nancarrow (1980s)
- Charlie Price - Cormoran Strike (1980s)
- Samuel Oatley - DI George Layborn
- Fionnula Flanagan - Oonagh Kennedy
- Mazz Murray - Elaine
- Giles Matthey - Paul Satchwell (1970s)
- Jack Morris - Steve Douthwaite (1970s)
- Ruth Sheen - Pat Chauncey
- Jonas Armstrong - Saul Morris
- Andy de la Tour - Nico 'Mucky' Ricci
- Jacob James Beswick - Luca Ricci (1970s)
- Lionelle Nsarhaza - Perfume Salesgirl
- Sam Woolf - Roy Phipps (1970s)
- Crispin Letts - Gregory Talbot
- James Corrigan - Al Rokeby
- Celia Learmonth - Woman in film
- Simone Ashley - Alicia - Receptionist
- J.K. Rowling
- Ruth Kenley-Letts
- Neil Blair
Jeremy Swift interpreta a Owen Quine en la serie.
Tom Burke interpreta a Cormoran Strike en la serie.
Holliday Grainger interpreta a Robin Ellacott en la serie.
Capítulo disponible en las siguientes plataformas:
