Carolyn Seymour (Abby Grant)
Ian McCulloch (Greg Preston)
Lucy Fleming (Jenny)
Helen Goldwyn (Ruth)
Zoe Tapper (Evelyn Piper)
James Wilby (Brendon Glover / Duffin)
Emily Joyce (Sasha Flint)
Gunnar Cauthery (Alan Kelly/ Sam Fulcher)
Leighton Pugh (Dan Lacey / Ulryk)
Julie Graham (Katherine Tanner)
Tracy Wiles (Professor Valentina Raskova)
Alex Blake (Pierre/ Hague)
Ellie Burrow (Postwoman / Gail Fulcher)
Andrew Wincott (Sick Man/ Mangham)
George Watkins (Craig)
Hannah Genesius (Spike)
Christopher Hatherall (Titch)
Sheila Reid (The Countess)