Chris O'Dowd
Roy Trenneman

Richard Ayoade
Maurice Moss

Katherine Parkinson
Jen Barber

Matt Berry
Douglas Reynholm

Noel Fielding
Richmond

Peter Serafinowicz
Lift (voice) / Newsreader (voice) / Voice Over (voice)

Tom Binns
Nolan

Lewis Macleod
Narrator (voice) / Charity Voice (voice) / Friendface (voice)

Belinda Stewart-Wilson
Barbara / Victoria

Nancy Lodder
Office Girl / Weeping Woman

Cordelia Bugeja
Abi

Bennet Thorpe
Clown / Office worker

Togo Igawa
Mr. Yamamoto / Japanese Boss

John Willie Hopkins
Postman Harry / Postman

Charlotte Weston
Jessica / Stephanie

Gemma Chan
Female Sulu / Ivana

Suzie Toase
Alison

Lucy Montgomery
April

Claudia Harrison
Delina

James Tovell
Terry