I believe the better question would be:
Are there any area with hostiles wich would not attack a cat?
And the answer, as far as i can remember would be:
Yes, one.
Its that group of looters in Overgrown Ruins.
Everyone else who is hostile in EA could potentialy have reason to attack the cat, either for fun (mostly sentient creatures, like Goblins, Githyanki, Drow or Duegar, ...), or for food (Gnolls, Spiders, Ettercaps, Minotaurs, ...).
I still dont understand why cant we change Race for our hirelings.

Lets us play Githyanki as racist as they trully are!