In the conclusion of the four-part story "City of Death," Count Scarlioni (Julian Glover) -- aka the notorious art thief Scaroth -- has vanished into the past, with the Doctor (Tom Baker), Romana (Lalla Ward), and detective Duggan (Tom Chadbon) in hot pursuit. Unless the Doctor can stop Scaroth, the entire Time Continuum will be cataclysmically disrupted. Catherine Schell appears as Countess Scarlioni, while comic actors John Cleese and Eleanor Bron make uncredited cameo appearances as a pair of looney art dealers. First telecast October 20, 1979, "City of Death, Episode 4" was written by Douglas Adams and Graham Williams.
by Hal Erickson synopsis