: Voiced by Thomas Lennon, who also co-wrote the original live-action films. Joan of Arc : A new prominent exhibit voiced by Alice Isaaz. Key Themes and Reception

: Steve Zahn and Jack Whitehall take over as the cowboy and Roman soldier duo.

: Nick must overcome his self-doubt and anxiety to lead the museum's living exhibits in a race against time to stop Kahmunrah before the sun rises. New Voice Cast

While the original live-action cast did not return, the film features a notable voice ensemble:

: The villainous pharaoh Kahmunrah (from Battle of the Smithsonian ) escapes his storage basement and attempts to unlock the Egyptian underworld to unleash an Army of the Dead.

The story follows , the teenage son of original night guard Larry Daley. When Larry takes a job at a museum in Japan, Nick reluctantly steps into his father’s shoes for the summer.