Robin Williams as Theodore Roosevelt, the wax statue of the 26th President of the United States Robin Williams also voices the bronze bust of Theodore Roosevelt. Amy Adams as Amelia Earhart, a known historic pilot. Owen Wilson as Jedediah, a cowboy minifigure. Hank Azaria as Kahmunrah, a pharaoh who is the evil and sinister brother of Ahkmenrah. Christopher Guest as Ivan the Terrible, the historic Tsar of Russia who allies with Kahmunrah. Alain Chabat as Napoleon Bonaparte, the leader of the First French Empire who allies with Kahmunrah. Jon Bernthal as Al Capone, a gangster and founder of the Chicago Outfit who allies with Kahmunrah. Steve Coogan as Octavius, a Roman soldier minifigure. Mizuo Peck as Sacagawea, the polyurethane model of the Lemhi Shoshone woman who is Theodore Roosevelt 's girlfriend. Bill Hader as George Armstrong Custer, a military figure who Larry befriends. Rami Malek as Ahkmenrah, a pharaoh who is the good brother of Kahmunrah. Patrick Gallagher as Attila the Hun Brad Garrett as Easter Island Head (voice) Kerry van der Griend as Neanderthal # 1 Matthew Harrison as Neanderthal # 2 Rick Dobran as Neanderthal # 3 Randy Lee as Hun # 1 Darryl Quon as Hun # 2 Gerald Wong as Hun # 3 Paul Chih - Ping Cheng as Hun # 4 Jonas Brothers as Cupid Statues Jay Baruchel as Joey Motorola, a sailor who resides in the V-J Day in Times Square photograph. Keith Powell as Tuskegee Airman # 1 Craig Robinson as Tuskegee Airman # 2 Clint Howard as Air and Space Mission Control Tech # 1 Matty Finochio as Air and Space Mission Control Tech # 2 Thomas Lennon (uncredited) as Orville Wright Robert Ben Garant (uncredited) as Wilbur Wright Caroll Spinney as Oscar the Grouch, the famous Sesame Street character that tries to ally with Kahmunrah only to be dismissed because Kahmunrah classified him as a "grouch. '' Thomas Morley as Darth Vader, the infamous Star Wars character that tries to ally with Kahmunrah only to be turned away because he was "dark. ''
who did bill hader play in night at the museum 2
George Armstrong Custer