Night at the Museum: Secret of the Tomb Cast

Ben Stiller plays Larry Daley, the museum's night guard who cares for the exhibits, and also provides the vocal effects for Laaa, a capuchin monkey.

Robin Williams plays Theodore Roosevelt, a wax president who acts as a proud leader and friend to the other exhibits.

Owen Wilson plays Jedediah, a miniature cowboy who is brave and quick to speak his mind.

Steve Coogan plays Octavius, a small Roman soldier who is Jedediah's loyal friend.

Ricky Gervais plays Dr. McPhee, the museum director who manages the institution and its staff.

Dan Stevens plays Sir Lancelot, a medieval knight who joins the other historical figures in the museum.

Rebel Wilson plays Tilly, an Australian security guard who works at the museum.

Skyler Gisondo plays Nick Daley, Larry's teenage son who becomes involved with the museum's events.

Rami Malek plays Ahkmenrah, an Egyptian pharaoh whose tablet gives life to the exhibits.

Patrick Gallagher plays Attila the Hun, a warrior exhibit who often acts fiercely.

Mizuo Peck plays Sacajawea, a Native American guide who is one of the museum's historical figures.

Ben Kingsley plays Merenkahre, a former pharaoh and Ahkmenrah's father who has knowledge about the tablet.