Sam Worthington
as Jake Sully
Zoe Saldaña
as Neytiri
Stephen Lang
as Colonel Miles Quaritch
Michelle Rodriguez
as Trudy Chacon
Sigourney Weaver
as Dr. Grace Augustine
Giovanni Ribisi
as Parker Selfridge
Joel David Moore
as Norm Spellman
CCH Pounder
as Mo'at
Wes Studi
as Eytukan
Laz Alonso
as Tsu'Tey
Dileep Rao
as Dr. Max Patel
Matt Gerald
as Corporal Lyle Wainfleet
Sean Anthony Moran
as Private Fike
Jason Whyte
as Cryo Vault Med Tech
Scott Lawrence
as Venture Star Crew Chief
Kelly Kilgour
as Lock Up Trooper
James Patrick Pitt
as Shuttle Pilot
Sean Patrick Murphy
as Shuttle Co-Pilot
Peter Dillon
as Shuttle Crew Chief
Kevin Dorman
as Tractor Operator
Kelson Henderson
as Dragon Gunship Pilot
David Van Horn
as Dragon Gunship Gunner
Jacob Tomuri
as Dragon Gunship Navigator
Michael Blain-Rozgay
as Suit #1
Jon Curry
as Suit #2
Julene Renee
as Ambient Room Tech
Luke Hawker
as Ambient Room Tech
Woody Schultz
as Ambient Room Tech
Peter Mensah
as Horse Clan Leader
Sonia Yee
as Link Room Tech
Jahnel Curfman
as Basketball Avatar
Ilram Choi
as Basketball Avatar
Kyla Warren
as Na'vi Child
Alicia Vela-Bailey
as Blonde in Bar
Kyle Dryberg
as Bar Bully
Larry Rew
as Crematorium Tech
Dina Morrone
as TV Voice Over Announcer
Rodney Cook
as Trooper (uncredited)