Sam Worthington as Jake Sully

Zoe Saldaña 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

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 / Troupe

Luke Hawker as Ambient Room Tech

Woody Schultz as Ambient Room Tech / Troupe

Peter Mensah as Horse Clan Leader

Sonia Yee as Link Room Tech

Jahnel Curfman as Basketball Avatar / Troupe

Ilram Choi as Basketball Avatar

Kyla Warren as Na'vi Child

Lisa Roumain as Troupe

Debra Wilson as Troupe

Taylor Kibby as Troupe

Jodie Landau as Troupe

Chris Mala as Troupe

Julie Lamm as Troupe

Cullen B. Madden as Troupe

Joseph Brady Madden as Troupe

Frankie Torres as Troupe

Austin Wilson as Troupe

Sara Wilson as Troupe

Tamica Washington-Miller as Troupe

Lucy Briant as Op Center Staff

Nathan Meister as Op Center Staff

Gerry Blair as Op Center Staff

Matthew Chamberlain as Op Center Staff

Paul Yates as Op Center Staff

Wray Wilson as Op Center Duty Officer

James Gaylyn as Op Center Staff

Melvin Leno Clark III as Dancer

Carvon Futrell as Dancer

Brandon Jelkes as Dancer

Micah Moch as Dancer

Haniyyah Tahirah as Dancer

Christopher Nolen as Dancer

Christa Oliver as Dancer

April Marie Thomas as Dancer

Bravita A. Threatt as Dancer

Alicia Vela-Bailey as Ikran Clan Leader (uncredited)

Larry Rew as Crematorium Tech (uncredited)

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

Rodney Cook as Trooper (uncredited)