Sylvester McCoy (The Doctor)
Sophie Aldred (Ace)
Lisa Bowerman (Bernice Summerfield)
Nicholas Briggs (Sherlock Holmes)
Richard Earl (Doctor John Watson)
Hugh Fraser (Sherringford Holmes)
Anthony May (Baron Maupertuis)
Aaron Neil (Tir Ram)
Samantha Béart (Mrs Prendersly/Azazoth)
Michael Griffiths (Ambrose)
Guy Adams (K'Tcar'ch)