Ken Masters is Ryu's best friend, and a great martial artist as well. Although he tends to be a little bit more less restrained than Ryu. He has a hot and fiery spirit and is very easy to get irritated by people. For his voice the same rules applies to Ryu but instead of being calm, and refined. I want you to mimic Ken's energy and give him this stern, bold and cocky sort of attidude to the best of your ability.