We have had 5 cat since we got Willy. The 2 older cats (11 & 10yrs) tolerate
the dog. We had 2 that have gone to the bridge w/in the last 2 years & both of them liked Willy & would play with him. Our 3yr old cat & Willy play all the time, but with our youngest he came after Willy & they became instant buddys. It depends alot on the cat & their temperment. In our case the male cats are more willing to tolerate & play with the dog, our female after 6years still growls & hisses when Willy gets too close. Just give them time & equal attention & they will be just fine.
Desiree