Attack of the Cybermen is an episode of the Sixth Doctor in the British science fiction television series Doctor Who. This episode features the return of Lytton and the Cyber-Controller. It also introduces the Cryons as the natives of Telos.
- The Cyber-Controller and Telos fist appeared in The Tomb of the Cybermen.
- Peri: On Earth, Halley's Comet is always associated with impending disaster.
- Cyber-Controller: You will be turned into an emotionless cyborg.
- Cryon: The Cybermen will not leave Telos!