Paul McGann (The Doctor)
Nicola Walker (Liv Chenka)
Hattie Morahan (Helen Sinclair)
Robert Bathurst (Padrac)
Caroline Langrishe (Lady Farina)
Bethan Walker (Kiani)
Ramon Tikaram (Castellan)
David Yelland (Walter Pritchett)
John Woodvine (Galileo Galilei)
Harry Myers (Cleaver)
Esther Hall (Virginia)
Gunnar Cauthery (Cavalli)
Ewan Bailey (Count Licori/Father Locke/Orbs)
Matthew Cottle (Paine) and Mark Bonnar as The Eleven - with a special apperance by Sylvester McCoy (The Seventh Doctor)