George Takei plays Shinji Yokohama on Hit-Monkey.
Though most widely known for playing Sulu on the original Star Trek series, his distinctive baritone has helped him forge an extensive list of credits as a voice actor. He's lent his voice to almost every major American animated series, and several animated films, over the last 30 years.
He is also broadly known for his advocacy for same-sex marriage as well as shedding more light onto World War II-era Japanese internment camps in the United States.