Andrew Scott (Adam), Paul Mescal (Harry), Carter John Grout (Young Adam), Jamie Bell (Dad), Claire Foy (Mum), Ami Tredrea (Waitress), Sean Tizzard (Dad on train (uncredited))

Patrick Ghislain (Foley Mixer), Kahleen Crawford (Casting), Nicola Buck (Hair Supervisor), Nicola Buck (Makeup Supervisor), Graham Broadbent (Producer), Peter Czernin (Producer), Ollie Madden (Executive Producer) more..., Alexander Bracq (Stunt Double), Per Boström (Sound Re-Recording Mixer), Andrew Haigh (Writer), Taichi Yamada (Novel), Christer Melén (Sound Effects Editor), Diarmuid McKeown (Executive Producer), Jamie D. Ramsay (Director of Photography), Emilie Levienaise-Farrouch (Original Music Composer), Neil Stemp (Music Editor), Michael King (Third Assistant Director), Sarah Blenkinsop (Costume Design), Joakim Sundström (Supervising Sound Editor), Kenny Knight (Stunts), Farhana Bhula (Executive Producer), Sarah Finlay (Production Design), Emma Mager (Co-Producer), Zoe Clare Brown (Hair Designer), Zoe Clare Brown (Makeup Designer), Jonathan Alberts (Editor), Jeremy Campbell (Co-Producer), Connie Farr (Music Supervisor), Marian Murray (Set Decoration), Thomas Markwick (Boom Operator), Katie Goodson (Head of Production), Paul O'Hara (Visual Effects Producer), Matt Curtis (Title Designer), Chloë Kilby (First Assistant Editor), Francesco Le Metre (Music Editor), Jorge Alarcón (Dialogue Editor), Amaka Ugwunkwo (Unit Production Manager), Jason Wingrove (First Assistant Camera), Daniel Battsek (Executive Producer), James Hyde (ADR Mixer) and others.