Bill Nighy as Williams

Aimee Lou Wood as Margaret Harris

Alex Sharp as Peter Wakeling

Tom Burke as Sutherland

Adrian Rawlins as Middleton

Oliver Chris as Hart

Hubert Burton as Rusbridger

Zoe Boyle as Mrs. McMasters

Barney Fishwick as Michael

Patsy Ferran as Fiona

Michael Cochrane as Sir James

Lia Williams as Mrs. Smith

Anant Varman as Singh

Jessica Flood as Mrs. Porter

Jamie Wilkes as Talbot

Richard Cunningham as Harvey

John Mackay as Jones

Ffion Jolly as Mrs. Button

Celeste Dodwell as Mrs. Matthews

Jonathan Keeble as Doctor Matthews

Eunice Roberts as Miss Fry

Mark James as Young Michael

Edward Wolstenholme as Colleague

Nichola McAuliffe as Mrs. Blake

Laurie Denman as Piano Man

Gleanne Purcell-Brown as Barwoman

Violeta Valverde as Striptease Artist

Michael James as Fortnums Watier

Rosie Sansom as Mrs. Johnstone

Matilda Ziegler as Prim Lady

Grant Gillespie as Lyons Head Waiter

Robin Sebastian as Distinguished Gentleman #1

David Summer as Distinguished Gentleman #2

Nicky Goldie as Landlady

Thomas Coombes as Police Constable

Grant Crookes as Commuter (uncredited)