Why dont you use they/them when refering to the inspector as a general entity instead of saying his/her or adjacent all the time? /gen
It's sort of 'canon' from the programme itself, but personally, I view each incarnation as singular rather than nonbinary. For the overall history of Inspector Spacetime, I can see the Inspector as nonbinary, but the writers don't seem to understand the entire concept of nonbinary people. (See 'The Tame Green Hither', for how the show runner/writer dealt with a nonbinary character.) Perhaps if the writers had nonbinary friends or family members, they would better understand what it means to be nonbinary and could write nonbinary characters that actually reflect reality rather than their interpretation that doesn't demonstrate what it's really like for nonbinaries.