Any other introductions with the cats?
He is a little bit afraid of the cats, but other than that it's going well. He mostly just ignores them because he'd much rather be getting attention from us than bothering with the cats! Tuna could really care less about him and Pocky is a little afraid but once she realizes that he is just as afraid of her I'm sure they will be fine.

We keep a baby gate on Alexa's door so that the cats can jump over to go in and out as they please. Payson is great about not jumping on or over the baby gate so the arrangement seems to be working very well.