Harley Quinn

After the Delorean, the TARDIS and Ecto-1 crashed into each other and formed a pile of bricks, Harley Quinn shouted out, "Somebody oughta call a Doctor!". (NOTVALID: Doctor, Doctor, Doctor)

She was in Diagon Alley when Wyldstyle sped past her on her motorbike. (NOTVALID: New Adventures Await!)