* Sam Worthington as Jake Sully
* Zoe Saldana as Neytiri
* Sigourney Weaver as Dr. Grace Augustine
* Stephen Lang as Colonel Miles Quaritch
* Michelle Rodriguez as Trudy Chacon
* Giovanni Ribisi as Parker Selfridge
* Joel David Moore as Norm Spellman
* CCH Pounder as Mo'at
* Wes Studi as Eytukan
The cast of the "Avatar" sequels includes many of the same actors, with additions like:
* Kate Winslet as Ronal
* Cliff Curtis as Tonowari
* Jamie Flatters as Neteyam
* Britain Dalton as Lo'ak
* Trinity Bliss as Tuktirey
* Bailey Bass as Tsireya
* Filip Geljo as Aonung
* Duane Evans Jr. as Rotxo
It's important to note that the actors often use motion capture technology to bring their characters to life on screen. So while they're the ones performing the roles, the final on-screen characters are often significantly different from their real-life appearances.