山田 耕平

Billy Bob Johns, known more commonly by his stage name Maximillion "Max" Galactica, is a stage magician and the most well-known performer at the Berry Big Circus. He is the defendant in the murder of Russell Berry, the circus's ringmaster. 

Galactica's obsession with his own beauty and fame borders on narcissism, even constantly looking at the detention center cameras as if they were TV cameras. However, during certain times - such as when he found out he was being arrested for the murder of the ringmaster and not just being questioned - he reverts to his true self, a "country bumpkin" with no trace of his former narcissistic demeanor.

It should be noted that he is also very territorial, fighting hard for the heart of Regina Berry with Benjamin Woodman. Despite his seemingly egotistical personality, he is actually just a very ambitious man who wishes to strive for excellence in his profession and tries to instill this in his colleagues. Unfortunately for him, his attempts to do so just come across as bragging to the others. 

Ace Attorney Wiki page.