June is a minor character in the TV show Avatar: The Last Airbender, serving as the main antagonist of the Season 1 episode "Bato of the Water Tribe" and a supporting protagonist in the Season 3 episode "Sozin's Comet Part 1: The Phoenix King".
June was originally hired by Zuko to help him capture Avatar Aang. She has no loyalties towards anyone, except for the highest bidder. She also has a pet shirshu named Nyla that she uses to hunt down her targets.
She was voiced by Jennifer Hale, who also voiced the Emerald Empress in Legion of Super Heroes, Rojo in Ben 10, Shannon Lucas in Scooby-Doo! Moon Monster Madness, Alecto in God of War: Ascension, Kronika in Mortal Kombat 11, and Black Knight in Generator Rex.
When Zuko was tracking down Aang, he came across June and Nyla. He became enraged that her pet ripped a hole in his ship. She told him that he had a stowaway on his ship and that she was planning to collect the bounty.
Impressed by her and her pet, Zuko decided to hire her to capture the Avatar. He had June track down the Avatar by following his trail after obtaining Katara's scent from her mother's necklace. They successfully found Aang at a nearby abbey where she was largely occupied with an angry Appa. The two were able to capture Katara and Sokka, but were eventually rescued by Aang. However, Nyla was blinded when Katara waterbent a large quantity of perfume. This cause Nyla to become confused, because it sees through scent, resulting in both June and Zuko being hit by Nyla's tongue, temporarily paralyzing them.
A few days before Sozin's Comet arrived, Aang disappeared. Zuko and the others went to the Earth Kingdom to find June. Zuko asked June to track down Aang again, but this time she couldn't. She explained that Nyla couldn't track down Aang because he's gone, but not dead. So Zuko had to think for an alternative. He asked June to track down Iroh.
By having Nyla sniff one of Iroh's slippers, June was able to lead them to the location of Iroh. It's unknown what happened to June and Nyla afterwards.