Nick Frost

Character: Bruce

Chris O'Dowd

Character: Drew

Olivia Colman

Character: Sam

Rashida Jones

Character: Julia

Kayvan Novak

Character: Bejan

Ian McShane

Character: Ron Parfitt

Rory Kinnear

Character: Gary

Alexandra Roach

Character: Helen

Isabella Steinbarth

Character: Young Sam

Steve Oram

Character: Security Guard Kevin

Janine Wood

Character: Female Client

Tim Plester

Character: Mickey

Wendi McLendon-Covey

Character: Carly

Brandon Robinson

Character: Bully #1

Louis Kyriacou

Character: Bully #2

Kieran Gaffney

Character: Bully #3

Susana Montero

Character: Gloria

Yanet Fuentes

Character: Alicia

Michael Keat

Character: Santo Vito MC (as Miguel Mantovani)

Archibald Easton

Character: Santo Vito MC (as Archerio)

Simon Pegg

Character: Driver during car park dance off (uncredited)

Ben Radcliffe

Character: Young Bruce