Voice Actors
Zach Tyler Eisen 
as Aang
Jack DeSena
as Sokka
Greg Baldwin
as Uncle Iroh (Season 3)
Mae Whitman
as Katara
Jessie Flower
as Toph
Mako
as Uncle Iroh (Seasons 1 & 2)
Dante Basco
as Zuko
Dee Bradley Baker
as Appa/Momo
Grey DeLisle
as Azula
Recurring Roles
Jennie Kwan
as Suki
James Garrett
as Avatar Roku
Cricket Leigh
as Mai
Jason Isaacs
as Admiral Zhao
Olivia Hack
as Ty Lee
Clancy Brown
as Long Feng
Mark Hamill
as Fire Lord Ozai
Crawford Wilson
as Jet
Guest Stars
| Melendy Britt | Gran Gran |
|---|---|
| Joe Alaskey | Dealer |
| Hector Elizondo | Wan Shi Tong |
| Kim Mai Guest | Song |
| Malachi Throne | Colonel Mongke |
| Robert Patrick | Piandao |
| Laraine Newman | Lily |
| Derek Basco | Moku |
| Tsai Chin | Aunt Wu |
| Matthew Underwood | Hide |
| Noah Luke | Shoji |
| Jeanne Sakata | Ms. Kwan |
| Tinashe Kachingwe | On Ji |
| Jodi Carlisle | Herbalist Lady |
| Melinda Clarke | Madame Macmu-Ling |
| George Kee Cheung | Pao |
| Jessie Flower | Meng |
| Paul Eiding | Governor of New Ozai |
| Bill Bolender | Sha-Mo |
| Serena Williams | Ming |
| Dee Bradley Baker | Chong |
| Andy Morris | Kenji |
| Marcella Lentz-Pope | Jin |
| Scott Menville | Gan Jin Scout |
| Johanna Braddy | Princess Yue |
| Kevin Michael Richardson | Lion Turtle |
| Paul McKinney | Ghashiun |
| Jim Meskimen | Avatar Kuruk |
| Nick Jameson | General Shinu |
| William Bassett | Huu |
| Carlos Alazraqui | Due/Tho |
| Kristoffer Tabori | War Minister Qin |
| Keone Young | High Sage |
| Rene Auberjonois | Gan Jin Leader |
| Fred Tatasciore | Omashu Resistance Leader |
| Jon Polito | Chief Arnook |
| Jack Angel | Pirate Captain |
| Ben Oiskin | Hahn |
| John Kassir | Chey |
| Jennifer Hale | June |
| Raphael Sbarge | Professor Zei |
| Cameron Monaghan | Twin #1/Twin #2 |
| Kurt Fuller | Quon |
| Brian George | Guru Pathik |
| Barry Dennen | General Sung |
| Karen Maruyama | Bureaucrat |
| Erik Todd Dellums | Koh |
| Phil Proctor | Music Teacher |
| Phil LaMarr | Earth King |
| Jim Ward | Headmaster |
| Mark Hamill | Spirit Monkey |
| Tress MacNeille | Hama |
| Jen Cohn | Ursa |
| Grey DeLisle | Kya |
| Walker Edmiston | Fire Lord Azulon |
| Erik Von Detten | Chan |
| Daniel Dae Kim | General Fong |
| Bryan Konietzko | Fire Nation Soldier |
| Ross Thomas | Ruon-Jian |
| Wade Williams | Warden |
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