Cast of The Lost World: Jurassic Park

Jeff Goldblum plays Ian Malcolm, a mathematician and chaos theorist who returns to a dinosaur-infested island.

Julianne Moore portrays Sarah Harding, a field biologist and expert in animal behavior who joins the expedition.

Pete Postlethwaite takes on the role of Roland Tembo, a skilled big-game hunter hired to capture dinosaurs.

Arliss Howard plays Peter Ludlow, the ambitious owner of InGen who seeks to exploit the dinosaurs for profit.

Richard Attenborough returns as John Hammond, the original creator of Jurassic Park, who seeks to rescue the dinosaurs.

Vince Vaughn plays Nick Van Owen, a video documentarian who helps record the expedition to the island.

Vanessa Lee Chester portrays Kelly Curtis Malcolm, Ian Malcolm's daughter who accompanies him on the mission.

Peter Stormare plays Dieter Stark, a mercenary tasked with capturing dinosaurs for Peter Ludlow.

Harvey Jason takes on the role of Ajay Sidhu, a field guide who assists the expedition team.

Richard Schiff portrays Eddie Carr, a field equipment specialist who supports the group during their adventure.

Thomas F. Duffy plays Dr. Robert Burke, a member of the expedition team who specializes in dinosaur behavior.

Joseph Mazzello reprises his role as Tim, a teenager who previously visited Jurassic Park and helps during the crisis.