While taking in the sights of Paris in 1979, the Doctor and Romana sense that someone is tampering with time. Who is the mysterious Count Scarlioni? Why does he seem to have counterparts scattered through time? And just how many copies of the Mona Lisa did Leonardo da Vinci paint?
Tom Baker
The Doctor
Lalla Ward
Romana
Julian Glover
Count Scarlioni / Captain Tancredi / Scaroth
Catherine Schell
Countess
Tom Chadbon
Duggan
David Graham
Kerensky / Hermann
Pamela Stirling
Louvre Guide
Peter Halliday
Soldier
