Cast of Jurassic Park III(2001)

As The Lost World Jurassic Park, the movie takes place on Isla Sorna as well. The movie takes off a couple of years after the San Diego incident.

Here is a list of some of the characters that were in the movie.

Alan Grant

Sam Neil, who is famous for his role as Dr.Alan Grant, Paleontologist and one of the survivors from the Isla Nublar incident. 

Ellie Settler

Ellie talking to Alan in the beginning of the movie.

Ellie Settler who is played by Laura Dern, a paleobotanist and another survivor of the Isla Nublar incident.

Billy Brennan

Alessandro Nivola as Billy Brennan, a young and over-enthusiastic graduate student from Grant's dig site.

Paul kirby

William H. Macy as Paul Kirby, the owner of a hardware store who poses as a wealthy businessman in order to lure Grant into helping search for his son.

Amanda Kirby

Téa Leoni as Amanda Kirby, Paul's former wife who accompanies the group to Isla Sorna to search for her son.

Erik Kirby

Paul and Amanda's 12-year-old son, stranded on Isla Sorna.

Udesky

Michael Jeter as Udesky, one of the mercenaries hired by Paul Kirby.

Credits to Jurassic Park Wiki - Wikia for additional information and images.

http://jurassicpark.wikia.com/wiki/Jurassic_Park_Wiki

Credits to IMDb for information references.

http://www.imdb.com/title/tt0163025/trivia

Jurassic Park III

Plot

Promotional movie poster for Jurassic park III(2001)

Paleontologist Dr Alan Grant (Sam Neill) agrees to guide an extremely rich couple, Paul Kirby (William H. Macy) and his wife Amanda (Téa Leoni), on a plane tour over Isla Sorna, the sister island to Isla Nublar and home of the second InGen dinosaur research lab. When they get there, however, they make an unexpected landing against Alan's better judgement and the Kirbys reveal that they are actually searching for their 12-year old son Erik (Trevor Morgan), who went missing eight weeks ago while parasailing with his mom's boyfriend Ben Hildebrand (Mark Harelik). A second landing results in the plane crashing and Alan's worst fears coming true. The velociraptors are shown to be a communicating species, smarter even than dolphins and primates. Add to that a new hunter, the Spinosaurus aegypticus, more vicious than even theTyrannosaurus rex, and the leisurely plane trip over the island becomes a fight for their lives.

Credits to Jurassic Park Wiki - Wikia for additional information and images.

http://jurassicpark.wikia.com/wiki/Jurassic_Park_Wiki

Credits to IMDb for information references.

http://www.imdb.com/title/tt0163025/trivia