Meelo

Meelo is a character in the upcoming series, "Avatar: Legend of Korra"

Speculation

 * Meelo may not even exist in the series; the only proof that is given is that someone has tweeted that they are auditioning for said role.
 * Meelo is a name similar to Momo, so we can presume that Meelo is an animal hybrid. Meelo can also be a regular person, but nothing is confirmed.
 * Meelo sounds like a variant of a name from the group that lived with the Mechanist in the Northern Air Temple. Therefore, Meelo may be an Earth Kingdom native and also be related to Teo.