Jude Law as Rory O'Hara

Carrie Coon as Allison O'Hara

Charlie Shotwell as Ben O'Hara

Oona Roche as Sam O'Hara

Adeel Akhtar as Steve

Wendy Crewson as Allison's Mum

Anne Reid as Rory's Mum

Michael Culkin as Arthur Davis

Tanya Allen as Margy

Tattiawna Jones as Coach

Marcus Cornwall as Spencer

Annabel Leventon as Patricia Davis

Peter Hamilton Dyer as Donald Barker

Bamshad Abedi-Amin as Dave

Oliver Gatz as Edward

Christian Jenner as Maitre D'

Stuart McQuarrie as Jim

Francesco Piacentini-Smith as Graham

Charlie Shaw as James

Polly Allen as Stella

Gunnar Cauthery as Jon

Kaisa Hammarlund as Helena

Andrei Alén as Adam

Alexandra Moloney as Coat Check Woman

James Craze as Young Guy

James Nelson-Joyce as Taxi Driver

Tommy Gene Surridge as Paul (uncredited)