Naomi Watts as Ann Darrow

Adrien Brody as Jack Driscoll

Jack Black as Carl Denham

Andy Serkis as Kong / Lumpy

Colin Hanks as Preston

Thomas Kretschmann as Captain Englehorn

Jamie Bell as Jimmy

Kyle Chandler as Bruce Baxter

Evan Parke as Hayes

Lobo Chan as Choy

John Sumner as Herb

Craig Hall as Mike

Peter McKenzie as Venture Crew

William Johnson as Manny

David Pittu as Weston

Mark Hadlow as Harry

Geraldine Brophy as Maude

David Dennis as Taps

Pip Mushin as Zelman

Jim Knobeloch as Thuggish Executive

Ric Herbert as Sleazy Executive

Lee Donahue as Studio Guy's Assistant

Tom Hobbs as Young Assistant

Tiriel Mora as Fruit Vendor

Jed Brophy as Venture Crew

John Wraight as Venture Crew

Will Wallace as Venture Crew

Frank Edwards as Venture Crew

Crawford Thomson as Venture Crew

Richard Kavanagh as Venture Crew

Stephen Hall as Venture Crew

Joe Folau as Venture Crew

Chic Littlewood as Old Security Guard

Samuel Taylor as Hooverville Child

Lorraine Ashbourne as Theatre Actor

Laura Surrich as New York Theatre Goer

Katie Jackson as NY Child

Michael Lawrence as Venture Crew

Ray Woolf as Venture Crew - Helmsman

Eddie Campbell as Venture Crew - Crewman

Greg Smith as Venture Crew

Phil Grieve as Laughing Man

Matt Wilson as Photographer

Jim McLarty as Photographer

Latham Gaines as Photographer

Camille Keenan as New York Citizen (uncredited)

Peter Jackson as Biplane gunner

Billy Jackson as NY Child

Jack Machiela as American Soldier (uncredited)

Frank Darabont as Biplane gunner (uncredited)