Olivia Williams as Meg

Matthew Modine as Alec

Antonia Clarke as Penny

Steve Oram as Nigel Lean

Adam Thomas Wright as Harper

Richard Dillane as Greg

Rebecca Calder as Isabella

Jonathan Jaynes as Sean Donnelly

David Peel as Telephone Engineer

Stephen Chance as Charles Kendrick Walker

Mark Heenehan as Brad Mason

Howard Lee as Frank