Cast
- Maureen O'Brien (Vicki)
- Peter Purves (Steven Taylor / The Doctor / Narrator)
- Mark Frost (Niccolo Machiavelli)
- Jamie Ballard (Guilliano de Medici)
- Robert Hands (Pope Leo X)
- Olivia Poulet (Carla)
- Joe Bor (Guard Captain)
Doctor Who - The Early Adventures
3.3. Doctor Who: The Ravelli Conspiracy
Written by Robert Khan Tom Salinsky
Starring Maureen O'Brien Peter Purves