Colin Baker (in-universe)

Colin Baker was an actor who played a fictional Doctor Who, starring in BBC's Doctor Who. Baker was also put on trial twice.

Biography
At some point in Baker's life, he had been put on trial. (WC: The Trial)

The Twelfth Doctor once knew, through "psychic shenanigans", that many actors were gathering at London's West End for a special breakfast, and that the people he was talking to could meet them; one of the actors was Colin Baker. (WC: Peter Capaldi and Simon the Shy Cyberman Invite You to Breakfast with 7 Doctors)

Baker was later put on trial once again, this time for an unpaid parking fine, which he received whilst filming new bonus material for the Doctor Who Season 23 Blu-Ray Collection. During the trial, he tried to justify to the magistrate that he should be excused, and that the very fact he was on trial was a farce. Baker also provided evidence downloaded from the Time Lord's Matrix, but to no avail, and he was placed in a cell with a female friend. (WC: The Trial)

Appearance
Colin Baker wore a floral waistcoat over a navy blue shirt, complemented with a darker blue jacket, finished with a cat brooch. (WC: The Trial)

Other matters

 * Colin Baker photo.jpg of Colin Baker. (WC: Peter Capaldi and Simon the Shy Cyberman Invite You to Breakfast with 7 Doctors)]]Colin Baker also appears in The Happenstance Pox, the fourth story in the Baker's End series.
 * Evidently, "Colin Baker" in all above instances was intended to be an in-universe version of the real Colin Baker, who portrayed the Sixth Doctor. Although he was not given a clear in-universe illustration during the narrative of WC: Peter Capaldi and Simon the Shy Cyberman Invite You to Breakfast with 7 Doctors, the only currently valid story to reference him, the end of the webcast included a screen featuring photographs of each Doctor who would be present at the event, in-costume as "the Doctor".