Akira is the Japanese goto guy on The Simpsons. Need a Japanese guy that owns the local sushi shop, "The Happy Sumo?" Akira. Need a sensei? Akira. During his first appearance, Akira was voiced by George Takei, but has since been replaced by Hank Azaria, who does an impression of Takei.
Bart: Um, excuse me, sir. I already know how not to hit a guy. Can we break out the nunchucks?