Mia Goth as Mabel (voice)

Matthew Goode as Raymond (voice)

Claudie Blakley as Penelope (voice)

Eleanor De Swaef-Roels as Isobel (voice)

Mark Heap as Mr. Thomas (voice)

Stephanie Cole as Great Aunt Eleanor (voice)

Miranda Richardson as Aunt Clarice (voice)

David Peacock as Uncle Lucien (voice)

Barnaby Pilling as Van Schoonbeek (voice)

Jarvis Cocker as Developer (voice)

Sven Wollter as Odd Couple (voice)

Yvonne Lombard as Odd Couple (voice)

Bimini as Police Officer #1 (voice)

Ayesha Antoine as Police Officer #2 (voice)

Jason Barnett as Visitors & Relatives (voice)

Wayne Forester as Visitors & Relatives (voice)

Poppy Gathard as Visitors & Relatives (voice)

David Holt as Visitors & Relatives (voice)

Melanie Hudson as Visitors & Relatives (voice)

Emma Tate as Visitors & Relatives (voice)

Susan Wokoma as Rosa (voice)

Helena Bonham Carter as Jen (voice)

Paul Kaye as Cosmos (voice)

Will Sharpe as Elias (voice)