Sam Worthington
Jake Sully

Zoe Saldaña
Neytiri

Sigourney Weaver
Dr. Grace Augustine

Stephen Lang
Colonel Miles Quaritch

Michelle Rodriguez
Trudy Chacon

Giovanni Ribisi
Parker Selfridge

Joel David Moore
Norm Spellman

CCH Pounder
Mo'at

Wes Studi
Eytukan

Laz Alonso
Tsu'Tey

Dileep Rao
Dr. Max Patel

Matt Gerald
Corporal Lyle Wainfleet

Sean Anthony Moran
Private Fike

Jason Whyte
Cryo Vault Med Tech

Scott Lawrence
Venture Star Crew Chief

Kelly Kilgour
Lock Up Trooper

James Patrick Pitt
Shuttle Pilot

Sean Patrick Murphy
Shuttle Co-Pilot

Peter Dillon
Shuttle Crew Chief

Kevin Dorman
Tractor Operator

Kelson Henderson
Dragon Gunship Pilot

David Van Horn
Dragon Gunship Gunner

Jacob Tomuri
Dragon Gunship Navigator

Michael Blain-Rozgay
Suit #1

Jon Curry
Suit #2

Julene Renee
Ambient Room Tech / Troupe

Luke Hawker
Ambient Room Tech

Woody Schultz
Ambient Room Tech / Troupe

Peter Mensah
Horse Clan Leader

Ilram Choi
Basketball Avatar

Lisa Roumain
Troupe

Debra Wilson
Troupe

Chris Mala
Troupe

Nathan Meister
Op Center Staff

Matthew Chamberlain
Op Center Staff

Paul Yates
Op Center Staff

James Gaylyn
Op Center Staff

Micah Moch
Dancer

Alicia Vela-Bailey
Ikran Clan Leader (uncredited)

Larry Rew
Crematorium Tech (uncredited)

Dina Morrone
TV Voice Over Announcer (voice) (uncredited)

Rodney Cook
Trooper (uncredited)