My name is Oakley!

Oakley here is a 3-year-old male. He was rescued at Swope Park Dog Park and has been inside a loving home ever since. I have two other rather chill cats, and all Oakley ever wants to do is play, play, and play with them. While they sometimes return the playfulness, I am worried he will hurt my 15-year-old cat due to this. Oakley would make a great second addition to a family with a kitten and is pretty social. He would also do well as an indoor/outdoor cat, since we found him in the dog park, I'm led to believe his former family also allowed him to be an indoor/outdoor cat. Oakley has previously lived with dogs before, and does alright with them, but would do much better in a house that does not have a dog. He was previously attacked and has become defensive every so often around dogs.