Alex Kingston (River Song)
Paul McGann (The Doctor)
Alexander Vlahos (Bertie Potts)
Alexander Siddig (Marcus Gifford)
Imogen Stubbs (Isabella Clerkwell)
Gbemisola Ikumelo (Prim)
Charlotte Christie (Daphne Garsington)
Alisdair Simpson (Colonel Lifford)
Oliver Dimsdale (Archie Ferrers)
John Banks (Professor Straiton)
Letty Butler (Spritz)
John Voce (Jenkins)
Aaron Neil (Sanukuma Master) and Samuel West (Mr Song)