From Wikipedia, the free encyclopedia. Bart the Bear (19 January 1977 - 10 May 2000) was an Alaskan Kodiak Bear that appeared in several Hollywood films. Previously, Barts mother appeared in the films Grizzly and Day of the Animals. Animal trainers Doug Seus and Lynne Seus of Wasatch Rocky Mountain Wildlife, Inc., in Heber City, Utah, trained Bart. He grew to 9 6" (2.90 m) tall and weighed 1,500 pounds (680 kg) throughout his life as an adult. John Candy, Dan Aykroyd, Annette Bening, Ethan Hawke, Steven Seagal, Gregory Peck, Tchéky Karyo, Brad Pitt, Alec Baldwin and Anthony Ver más..