Who is Toshi Banana from Extras and what is their importance?

Toshi Banana is a famous kicker in the town where Aya and Hiro lives. Hiro and Ren call Toshi the Nameless One because they dislike his kicks. Toshi approaches Hiro, Ren, and Aya at a tech party the night Aya's story is to kick for the first time. Ren decides because of Toshi's cutting remarks to kick Aya's story early.