Rhys Ifans as Howard Marks

Chloë Sevigny as Judy Marks

David Thewlis as Jim McCann

Luis Tosar as Craig Lovato

Crispin Glover as Ernie Combs

Omid Djalili as Saleem Malik

Christian McKay as Hamilton McMillan

Elsa Pataky as Ilze

Jack Huston as Graham Plinston

Jamie Harris as Patrick Lane

Sara Sugarman as Edna Marks

William Thomas as Dennis Marks

Andrew Tiernan as Alan Marcuson

Kinsey Packard as Patti Hayes

Ania Sowinski as Maureen

James Jagger as Joshua Macmillan

Howell Evans as George the Scout

Ken Russell as Russell Miegs

Ferdy Roberts as Acid Man

Waris Hussein as Mohammed Durrani

Huw Davies as Donald Nice

Matthew Jacobs as Eddie Laxton

David Sibley as Philip Fairweather

Daniel Faraldo as Mexican Secret Serviceman

Gillian Hanna as Irish Phone Operator

Dewi Rhys Williams as Swansea's Custom Man

Iwan Roberts as Postmas

Nathalie Cox as Opium Girl

Jay Itzkowitz as Judge James C. Paine

Ian Burford as Bank Chairman

Rollo Weeks as Eton Boy

Julian Firth as MIG Duncan

Olivia Grant as Alice

Jâms Thomas as James Morris

Frank Bourke as Loose Change Man

Thomas Whwatley as John Rogers QC

Mark Tandy as Lord Hitchinson QC

Eric Loren as Miami Prosecutor

Tony Rohr as Landlord

Paige Hewitt as Myfanwy Marks

Amelia Clarkson as Myfawny Marks

Hannah Roeg as Francesca Marks

Claudia Harris as Amber Marks

Ella Roeg as Amber Marks

Edgar Harris as Patrick Marks

Jeremi Cockram as Teacher

Rob Lane as Acid Policeman

Caolan Byrne as Irish Man

Ifan Huw Dafydd as Rugby Doctor

Stephen Marzella as Customs Officer #1

Euron Griffith as Customs Officer #2

Terence Harvey as Old Bailey Judge

Andrew Havill as Prosecution Barrister

Kal Weber as US News Anchor

Dominic Graville as Tennis Fave

Raquel Gribler as Welfare Officer

Craig Stevenson as Webster

Julio Perillán as Parole Examiner

Deobia Oparei as Tee Bone Taylor

Ron Forsythe as Gary Lickert

Francesc Pagès as Spanish Magistrate

Emerald Fennell as Rachel

Owain Arthur as Albert

David-Doc O'Connor as US Marshal

Ricardo Birnbaum as Miami Cop