- Nora-Jane Noone - Lucy
- Adam Sinclair - Ashdown
- Steven Elder - Doctor Koch
- Tim Frances - Colonel
- Lizzie Hopley - Hilda
- Willie Jonah - Old Man
- William Ilkley - Jeff
- Kathryn Sumner - Bill's Mother
- Paul Chahidi - Vronsky
- Eva Sayer - Girl in Street
- Claire-Louise Cordwell - Girl's Mother
- Simon Naylor - Man in Street
- Paul Blair - Man in Street
- Tony Maudsley - Blind Police Officer
- Sam Williams - Young Bill
- Paul Woodson - Barricade Police Officer
- Tim Versteegen - Australian Reporter
- Karl Fischer - Austrian Reporter
- Helen Barford - Hospital Mother
- Margo Cargill - Hospital Mother
- Natasha Alderslade - Hospital Mother
- Julia Joyce - Imogen
- Jenn Murray - Susan
- Nick Copus
- Marcus Catlin
- Ben Harrison
- Ruth Atkinson
- Angus Towler
- John Wyndham
- Patrick Harbinson
- John Gaskin
- Anne Frederick
- Alex Gill
- Kate Rhodes James
- Sheila Price
- Tom Stourton
- Mark Hinkley
- Russell Jeffery
- Alan D. Boyd
- Toby Slade-Baker
- Eric Apps
- Mark Gingras
Dougray Scott interpreta a Bill Masen en la serie.
Joely Richardson interpreta a Jo Playton en la serie.
Eddie Izzard interpreta a Torrence en la serie.
Brian Cox interpreta a Dennis Masen en la serie.
Vanessa Redgrave hace el papel de Durrant.
Jason Priestley interpreta a Coker en la serie.
Shane Taylor hace el papel de Osman.
Troy Glasgow interpreta a Troy en la serie.
John White interpreta a Barricade Man en la serie.
Nora-Jane Noone interpreta a Lucy en la serie.
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