Simon Pegg
Dennis
Acting
Thandiwe Newton
Libby
Acting
Hank Azaria
Whit
Acting
Dylan Moran
Gordon
Acting
Harish Patel
Mr. Goshdashtidar
Acting
India de Beaufort
Maya Goshdashtidar
Acting
Matthew Fenton
Jake
Acting
Simon Day
Vincent
Acting
Ruth Sheen
Claudine
Acting
Nevan Finegan
Mickey
Acting
Tyrone Huggins
Grover
Acting
Iddo Goldberg
News Reporter
Acting
Ameet Chana
Taxi Driver
Acting
Chris Hollins
Himself
Acting
Denis Lewis
Herself
Acting
Lorna Gayle
Nurse
Acting
Gabriel Fleary
Drag Queen
Acting
Pandora Colin
Claire
Acting
Stephen Merchant
Man with Broken Leg
Acting
David Walliams
Man in Bakery
Acting
Hazel Douglas
Older Woman
Acting
Anna Tolputt
Receptionist
Acting
Simon Lenagan
Undercover Cop / Dad
Acting
David Cann
Marathon Official
Acting
T.R. Bowen
Doctor
Writing
Margaret John
Libby's Grandmother
Acting
Floella Benjamin
Libby's Mum
Acting
David Milner
Libby's Dad
Production
Henrietta Clemett
Reception Nurse
Acting
Peter Serafinowicz
TV Commentator
Acting
Preston Nyman
Boating Boy (uncredited)
Acting
Rene Costa
Spectator (uncredited)
Acting