What have I unleashed?

What have I unleashed? Or is unleashed even a word to use when discussing cats? (Note the plural.)

            I opened the breakfast bar for Douglas this morning, not quite as early as he thought appropriate. He’d requested early service when Bob went out for the paper around six.

            Douglas munched his fill. Dinner from M. must have been glorious, for for all the meowing pleases, he didn’t eat much. For the leftovers, he invited not one but two (!) friends.

So what to name them? Since they are Douglas’s friends, I’ve dubbed the Mac and Arthur. But which is which?

While Mac and Arthur chowed down, Douglas sat by the backdoor regally maintaining that he is too an inside cat.

My problem now? What to name the next one. . .Suggestions?