A question asking which actors have played Dr. Who was closed recently. The reason the page shows is:
It's difficult to tell what is being asked here. This question is ambiguous, vague, incomplete, overly broad, or rhetorical and cannot be reasonably answered in its current form.
I don't see how that applies to this question. It's not at all difficult to tell what is being asked (and there are two good answers that show others can tell too). It doesn't really seem ambiguous, vague, or overly broad (I guess if you think it means anyone playing the Doctor in any production of any type ever, but if you read it that way an edit would fix it).
It's not incomplete or rhetorical, and the existing answers show that it can be reasonably answered.
When I originally saw the question I didn't think it was great (because it's trivial to find the list of the BBC actors elsewhere). The second answer helps that - it could be better IMO by excluding "spoofs", but including ones outside of the main 12 Doctors (e.g. Cushing, Trevor Martin, the Morbius actors) is reasonable. If the question was open, that could be fixed by an edit to that answer, or a third answer.
Was this closed just because it doesn't seem like a good question? As suggested here, a comment would be useful.