Judi Dench (Philomena), Steve Coogan (Martin Sixsmith), Sophie Kennedy Clark (Young Philomena), Mare Winningham (Mary Hess), Barbara Jefford (Sister Hildegarde), Ruth McCabe (Mother Barbara), Peter Hermann (Pete Olsson) more..., Sean Mahon (Michael Hess), Anna Maxwell Martin (Jane), Michelle Fairley (Sally Mitchell), Wunmi Mosaku (Young Nun), Amy McAllister (Sister Anunciata), Charlie Murphy (Kathleen), Cathy Belton (Sister Claire), Kate Fleetwood (Young Sister Hildegarde), Charissa Shearer (Peg), Nika McGuigan (Bridie), Rachel Wilcock (Mamie), Rita Hamill (Nursery Nun), Tadhg Bowen (Young Anthony), Saoirse Bowen (Young Mary), Harrison D'Ampney (Anthony (8-10 Years)), D.J. McGrath (John), Simone Lahbib (Kate Sixsmith), Sara Stewart (Marcia Weller), Gary Lilburn (Priest), Charles Edwards (David), Nicholas Jones (Dr. Robert), Paris Arrowsmith (Bellboy), Marie Jones (Barman's Mum), Frankie McCafferty (Barman), Vaughn Johseph (Receptionist Hotel), George Fisher (Omelette Chef), Jordan King (Waitress), Amber Batty (Marge), Martin Glyn Murray (Father), Florence Keith-Roach (Check In Operator), George Michael Rados (Priest In Church), Elliot Levey (Alex), Timothy Paul Jobe (Doc Hess)

Alexandre Desplat (Original Music Composer), Steve Coogan (Screenplay), Steve Coogan (Producer), Henry Normal (Executive Producer), François Ivernel (Executive Producer), Christine Langan (Executive Producer), Tracey Seaward (Producer) more..., Cameron McCracken (Executive Producer), Alan MacDonald (Production Design), Valerio Bonelli (Editor), Rod McLean (Supervising Art Director), Barbara Herman-Skelding (Set Decoration), Robbie Ryan (Director of Photography), Gabrielle Tana (Producer), Carolyn Marks Blackwood (Executive Producer), Jeff Pope (Screenplay), Sarah Stuart (Art Direction), Bradley Porter (Other), Peter Burgis (Foley Artist), Leo Davis (Casting), Leslie McDonald (Art Direction), Derek Trigg (Foley Editor), Sue Harding (Foley Artist), Lissy Holm (Casting), Glen Gathard (Foley Mixer), Chris Burdon (Sound Re-Recording Mixer), Doug Cooper (Sound Re-Recording Mixer), Naomi Donne (Makeup Designer), Peter Owen (Wigmaker), Norma Webb (Makeup Artist), Norma Webb (Hairstylist), Rachael Tate (Sound Editor), Mark Appleby (ADR Mixer), Nick Kray (ADR Mixer), Lydia Bensimmon (Hairstylist), Kathryn Fa (Hairstylist), Lucy Friend (Makeup Artist), Jay Price (Sound Editor), Harry Platford (ADR Recordist), Carol S. Federman (Makeup Artist) and others.