Colin Baker (The Doctor)
Nicholas Briggs (Captain Kybo/Commander)
Kiruna Stamell (Eliza Jenkins)
Trevor Cooper (Jonathan Jaggers Esq/Mr Preddle)
Tony Millan (Justice Burrows/Jonty)
Sabina Franklyn (President Beel/Aetius/Herculania)
Nicholas Pegg (Meretricious Gedge/Billy)
Barnaby Edwards (Judoon Computer).