harry potter and the half blood prince (2009)

Unknown.
As Harry, Hermione and Ron chat, a cat meows for attention, and when none is forthcoming, wanders off in a huff.

harry potter and the order of the phoenix (2007)

Cruickshanks.
A housecat gets involved when it sees an ear dangling, and does what any cat would do - he attacks it.


Later Harry visits Dolores Umbridge's office, which is lined with plates, with cats on, that all move and meow magically!


Mrs Norris.
We also have the pleasure of meeting Argus Filch's cat, who watches the caretaker's every move.