Stephen Merchant
as Greg Dillard
Rhianne Barreto
as Rani Rekowski
Gamba Cole
as Benjamin 'Ben' Eastfield
Darren Boyd
as John Halloran
Clare Perkins
as Myrna Okeke
Eleanor Tomlinson
as Lady Gabriella Penrose-Howe
Jessica Gunning
as Diane Pemberley
Grace Calder
as Sgt Lucy Haines
Kojo Kamara
as DS Selforth
Charles Babalola
as Malaki
Christopher Walken
as Frank Sheldon
Ian McElhinney
as John Snr
Tom Hanson
as Spencer
Aiyana Goodfellow
as Esme
Dolly Wells
as Margaret
Claes Bang
as The Dean
Nina Wadia
as Shanti
Rhys Yates
as Smiler
Gyuri Sarossy
as Jerzy
Richard E. Grant
as The Earl
Harry Trevaldwyn
as Stan
Julia Davis
as Rita