"Flatline" is the ninth episode of the eighth series of the British science fiction television programme "Doctor Who", written by Jamie Mathieson, and directed by Douglas Mackinnon. The episode stars Peter Capaldi and Jenna Coleman, with Joivan Wade and Christopher Fairbank guest starring. The episode received critical acclaim, with particular praise directed at Coleman's performance.
Can we infer the following?
Christopher Fairbank has appeared on at least one episode of "Doctor Who"

Choose from: + Yes. + It's impossible to say. + No.
The answer is:
Yes