Tom Baker (The Doctor)
Lalla Ward (Romana)
John Leeson (K9)
Timothy Bentinck (Colonel Radlett)
Andrew Bone (Woodrow)
Mark Bonnar (Godfrey / Porteus)
Richard Braine (Percy Closed)
Derek Carlyle (Orlick)
John Dorney (Eddie Nisbett / Ogrons)
Marcus Garvey (Frank Spiggot)
Terrence Hardiman (Stackhouse)
James Joyce (Zy / Wilkin / Ogron 5 / Barman / Voltt)
Abigail McKern (Felicia Chater)
Annabel Mullion (Julia)
Phil Mulryne (Shom / Hogan / Ogron 6 / Tannoy)
Miranda Raison (Margo / Xais)
Graham Seed (Pyerpoint)
Joshua Silver (Charlie Nisbett)
Jane Slavin (Blakemore / Bailiff / Librarian / Harriet)
Michael Troughton (Menlove Stokes)