Akira works as a waiter at The Happy Sumo, a Japanese restaurant in Springfield.
He first appeared in the second season in "One Fish, Two Fish, Blowfish, Blue Fish".
Actor George Takei originally voiced Akira in "One Fish, Two Fish, Blowfish, Blue Fish".
However, as episodes progressed, the character turned bitter.
When "the real Seymour Skinner" arrives in Springfield, Agnes ends up rejecting him in part because he stands up to her, but also because unlike Skinner/Tamzarian, her biological son is independent and doesn't need her anymore, while Skinner immediately reverts to a good-for-nothing without her.
Agnes' first name was revealed in the seventh season episode "Bart the Fink".
In "Boy Meets Curl", it is revealed that Agnes' resentment to Seymour may have begun even before her son was born — during the 1952 Summer Olympics in Helsinki, Agnes competed in the pole vaulting event while 9-months pregnant.
When Seymour makes his first kick, he hits the bar, thus, making Agnes lose and subsequently crushing her dreams.
However, this would contradict the earlier episode when it is revealed that Seymour is not her birth son.
In "Grade School Confidential", it is revealed that Agnes enjoys collecting pictures of cakes that she cuts out of magazines, a hobby she began in 1941. In the twenty sixth season episode "Sky Police" she mentions that she has a brother Stevie.
The Simpsons includes a large array of supporting characters: co-workers, teachers, family friends, extended relatives, townspeople, local celebrities, fictional characters within the show, and even animals.
The writers originally intended many of these characters as one-time jokes or for fulfilling needed functions in the town.
A number of them have gained expanded roles and have subsequently starred in their own episodes.
According to the creator of The Simpsons, Matt Groening, the show adopted the concept of a large supporting cast from the Canadian sketch comedy show Second City Television.