"She's a passive, hollow female protagonist who has so little personality you can totally insert yourself and lose nothing."
Mickey has become a sort of Lone Gunmen character - a perfectly ordinary guy who’s become a Doctor Who fan, only he’s done it within the story instead of outside of it. This is only possible in this new iteration of the show where it’s about its own success - now that Doctor Who is a thing in the culture it has ordinary people who are fans, and so Mickey has become a meta joke about that. (Likewise, Jackie becomes the person who still really doesn’t get this Doctor Who thing, even though all the kids are into it.)
— Phillip Sandifer reviews "School Reunion"