Foaming mouth guy

Foaming mouth guy was a resident of Kyoshi Island and was possibly the biggest fan of the Avatar.

History
Whenever Aang landed on Kyoshi Island, foaming mouth guy went into a screaming fit and started foaming at the mouth, followed by fainting and falling to the ground. When Katara and Sokka later returned to Kyoshi Island without Aang, who was being held prisoner in Chin Village at the time, foaming mouth guy repeated the performance, only to get up from the ground once he heard Aang was not with them, he wiped the foam from his mouth and walked away with his shirt pulled over his head in embarrassment.

Foaming mouth guy had never been known to speak actual words, only crazed gibberish. Judging from the confused/embarrassed reactions from other Kyoshi Island residents, foaming mouth guy seemed to be an outcast.

Trivia

 * A fan favorite, the character was originally designated to simply faint in his scene, but an additional creative contribution from animator Ryu Gi Hyun took it further.
 * He was also referred to as "crazy foaming mouth guy", "rabid fanboy", "foaming at the mouth guy" or just "foamy" in the fandom, as his real name was never revealed.
 * He was played by the same voice actor as the pirate barker, Oh.
 * A reference to foaming mouth guy was made when Sokka and Aang both foamed at the mouth due to disbelief at Katara's desire to pull off a scam.
 * Bryke once jokingly stated that Suki supposedly once dated foaming mouth guy, but is not proud of it.