|Planet of Origin:||Kayaclasch|
|Original era:||15th Century|
|Appears In:||The Space Rabble-Rouser, The Blorgons' Cunning Scheme|
|Portrayed By:||Michael York|
The Inspector first crosses paths with the reprobate Kayaclaschian in "The Spacetime Rabble-Rouser" when he is disguised as Renaissance friar. He plans to give Leonardo Da Vinci the knowledge necessary to complete many of his unfinished inventions, thus jump-starting the Space Age several hundred years early. The Inspector, fearing what this would do to the timeline, stops the Friar and makes his time booth so enormous that he cannot reach the controls. This effectively strands the Friar in that time period.
Somehow, the Friar is later able to fix his BOOTH, and the Inspector runs into him again, while he was an unwilling ally of his notorious nemeses in "The Blorgons' Cunning Scheme".
Some fans still debate whether or not the Friar was in fact the Sergeant himself, in an earlier form. The programme, however, has always left this point ambiguous.