<P> Lancelot crashes a performance of the Camelot musical, starring Hugh Jackman and Alice Eve as King Arthur and Queen Guinevere, but Larry and the others chase him to the theatre roof, where the New York exhibits begin to die . Lancelot then sees that the quest was about them and gives the tablet back . The moonlight restores the tablet's power, saving the exhibits . They decide that Ahkmenrah and the tablet should stay with his parents, even if it means the New York exhibits will no longer come to life . Back in New York, Larry spends some final moments with his friends before sunrise . </P> <P> Three years later, Larry now works as a teacher, and a travelling British Museum exhibit comes to New York . Tilly becomes the new night guard, and gives the tablet to Dr. McPhee, showing him its power, and allowing the exhibits to awaken again . Outside, Larry watches them party inside . </P> <Ul> <Li> Ben Stiller as Larry Daley, a security guard at the American Museum of Natural History . <Ul> <Li> Stiller also plays Laaa, a Neanderthal who resembles Larry . </Li> </Ul> </Li> <Li> Robin Williams as Theodore Roosevelt, the wax statue of the 26th President of the United States . </Li> <Li> Owen Wilson as Jedediah, a cowboy diorama miniature . </Li> <Li> Steve Coogan as Octavius, a Roman soldier miniature . </Li> <Li> Ricky Gervais as Dr. McPhee, the director of the Museum of Natural History . </Li> <Li> Rachael Harris as Madeline Phelps, the chairwoman of the American Museum of Natural History . </Li> <Li> Dan Stevens as Sir Lancelot, the wax statue of the legendary Knight of the Round Table . </Li> <Li> Rebel Wilson as Tilly, the night security guard at the British Museum . </Li> <Li> Skyler Gisondo as Nick Daley, the son of Larry Daley . He was previously played by Jake Cherry in the first two films . </Li> <Li> Rami Malek as Ahkmenrah, the mummy of an ancient pharaoh . </Li> <Li> Patrick Gallagher as Attila the Hun, the statue of the leader of the Huns . </Li> <Li> Mizuo Peck as Sacagawea, the polyurethane model of the Lemhi Shoshone woman who is Theodore Roosevelt's girlfriend . </Li> <Li> Ben Kingsley as Merenkahre, the mummy of an ancient pharaoh and Ahkmenrah's father . </Li> <Li> Dick Van Dyke as Cecil "C.J." Fredericks, a retired security guard from the first film . <Ul> <Li> Percy Hynes White plays the younger Cecil "C.J." Fredericks </Li> </Ul> </Li> <Li> Mickey Rooney as Gus, a retired security guard from the first film . </Li> <Li> Bill Cobbs as Reginald, a retired security guard from the first film . </Li> <Li> Andrea Martin as Rose, an archivist at the Museum of Natural History . </Li> <Li> Brennan Elliott as Robert Fredericks, C.J.'s father in the prologue . </Li> <Li> Matt Frewer as Archibald Stanley, an archeologist who accompanies Robert and Cecil in the prologue . </Li> <Li> Anjali Jay as Shepseheret, the mummy of a Great Royal Wife of Merenkahre and mother of Ahkmenrah . </Li> <Li> Crystal the Monkey as Dexter, a Capuchin monkey . </Li> <Li> Hugh Jackman as Himself (uncredited) </Li> <Li> Alice Eve as Herself (uncredited) </Li> </Ul> <Li> Ben Stiller as Larry Daley, a security guard at the American Museum of Natural History . <Ul> <Li> Stiller also plays Laaa, a Neanderthal who resembles Larry . </Li> </Ul> </Li>

Who plays the knight in night at the museum 3