Hugh Jackman (Peter Miller), Zen McGrath (Nicholas Miller), Vanessa Kirby (Beth), Laura Dern (Kate Miller), Anthony Hopkins (Anthony Miller), William Hope (Andrew), George Cobell (Nicholas (6 Years)) more..., Felix Goddard (Theo), Max Goddard (Theo), Shin-Fei Chen (Alexandra), Nancy Baldwin (Principal's Secretary), Akie Kotabe (Mr. Yama), Isaura Barbé-Brown (Sophia), Erick Hayden (Allan), Joseph Mydell (Brian), Rachel Handshaw (Brian's Assistant), Gabriel Ecoffey (Intern), Stephanie Palies (Assistant), George Potts (Therapist), Reza Diako (Waiter), Yolanda Nieto (Maria), Danielle Lewis (Jessica), Gretchen Egolf (E.R. Psychiatrist), Alex Mugnaioni (Nurse), Hugh Quarshie (Doctor Harris), Mercedes Bahleda (Mary (uncredited)), Van Pierre (Steven (uncredited)), Jesse Cilio (Bailey (uncredited)), Patrice Bevans (Attorney in Peter's Office (uncredited)), Rene Costa (Hospital Attendant (uncredited)), Joakim Skarli (Boardroom Executive (uncredited)), Julia Westcott-Hutton (Boardroom Executive (uncredited)), Kenny-Lee Mbanefo (Boardroom Executive (uncredited)), Riccardo Mazzi (Business Executive Staff (uncredited)), Darren J Clarke (Lawyer (uncredited))

Hans Zimmer (Original Music Composer), Hugh Jackman (Executive Producer), Christopher Hampton (Screenplay), Emile Sherman (Producer), Iain Canning (Producer), Philippe Carcassonne (Executive Producer), Ollie Madden (Executive Producer) more..., Mark DeSimone (ADR Mixer), Tim Haslam (Executive Producer), Susan Leber (Line Producer), Simon Bowles (Production Design), Ben Smithard (Director of Photography), Cass Marks (Line Producer), Florian Zeller (Screenplay), Florian Zeller (Producer), Florian Zeller (Theatre Play), Paul Kennington (Stunt Coordinator), Susanna Lenton (Script Supervisor), Niv Adiri (Sound Designer), Niv Adiri (Sound Re-Recording Mixer), Linda Forsén (ADR Supervisor), Dave Isern (Steadicam Operator), Caroline Story (Supervising Art Director), Carly Griffith (Assistant Costume Designer), Julie Robinson (Script Supervisor), Hugo Grumbar (Executive Producer), Joanna Laurie (Producer), Lisa Duncan (Costume Design), Mauro Calanca (First Assistant "B" Camera), Gabriel Hyman (First Assistant "A" Camera), Christophe Jeauffroy (Line Producer), Katherine Bridle (Associate Producer), Tammy Douglas (Sound Mixer), Jamie D. Allen (Second Assistant Director), George Every (First Assistant Director), Nicola Chisholm (Casting), Daniel Battsek (Executive Producer), Lisa Harlow-Powell (Wardrobe Supervisor), Kat Hess (Second Assistant Director), Lauren Dark (Executive Producer) and others.