Annabelle

Annabelle is a legendary Air nomad and airbending master.

About her
A beautiful pink whippet, Annabelle is considered the greatest living airbending master. Residing at the Eastern air temple, she trained both Tod and Streaky. She is proud to have been the avatar's master.

Bending
Annabelle is a living legend, the most powerful non-avatar airbender in the world, capable of many awe-inspiring bending feats.

Trivia

 * Annabelle is the shadowed airbender in the intro.