"Some people are team players, and some... well, aren't. Prowl falls into the latter category. A loner at heart, he has little interest in teamwork, something Optimus Prime finds extremely frustrating. Prowl feels cooperation with the loud and unsubtle Autobots around him would cramp his style: a keen Cyber-Ninja prowess with elements of Circuit-Su and Metallikato."

No real set-in-stone ideas for Prowl. You could do an impersonation of any previous Prowl voice actor, or go in a wildly new direction. Maybe you can lead into his loner nature and make him a total edgelord, or play into his samurai phase and make him a weeb. Have fun!