On the edge of the universe, the Doctor, Leela and K9 encounter a Minyan ship on an epic quest to find their race banks... but their people have encountered the Time Lords before...
Tom Baker
as The Doctor
Louise Jameson
as Leela
John Leeson
as K-9 Mk. I (voice)
James Maxwell
as Jackson
Alan Lake
as Herrick
Jonathan Newth
as Orfe
Imogen Bickford-Smith
as Tala
Christine Pollon
as Voice of the Oracle
James Marcus
as Rask
Godfrey James
as Tarn
Jimmy Gardner
as Idmon
Norman Tipton
as Idas
