This is just a suggestion. However, if he is just trying to play, it may mean that he just has too much energy. I am not sure how much you paly with him, but if it is not much try playing with him a little more and work off some of that energy and he may leave the other kitties alone more.

Like I said just a suggestion, and I am no expert in this area. Hopefully, some one else will have other suggestions.

Good luck and I hope you find the solution.