SANTA'S LITTLE HELPER BECOMES A POLICE DOG ON "THE SIMPSONS" SUNDAY, APRIL 29, ON FOX

Rudy Giuliani and Stephen Hawking Make Guest Voice Appearances

Homer is upset when he realizes that Marge brought him and the family to a boring Harvest Fest instead of his much-anticipated day of debauchery at October Fest. Attempting to leave, Homer accidentally drags the family into a puzzling cornfield maze. When the whole family manages to escape except for Homer, they send out Santa's Little Helper, who sniffs out Homer and rescues him. Santa's Little Helper becomes a local hero and the Simpsons decide to enroll him in Police Dog Academy, where he's teamed with a grizzled veteran cop named Lou and they become a crime-busting duo. Bart's excitement quickly dissipates when a jaded Santa's Little Helper bites him, and the Simpsons send the dog away to live with Chief Wiggum. To appease Bart's depression after the loss of his dog, Marge agrees to buy him a huge pet snake. But when the snake causes a life-threatening situation at Bart and Lisa's school, Santa's Little Helper gets a chance to redeem himself in the "Stop or My Dog Will Shoot" episode of THE SIMPSONS Sunday, April 29 (8:00-8:30 PM ET/PT) on FOX. (SI-1812) (TV-PG)

Voice Cast: Voice Cast: Dan Castellaneta as Homer Simpson, Winning Farmer, Groundskeeper Willie, Santa's Little Helper, French Protestor #1, Duck, and Burns' Lawyer; Julie Kavner as Marge Simpson; Nancy Cartwright as Bart Simpson, Kearney, Nelson, and Ralph; Yeardley Smith as Lisa Simpson; Harry Shearer as Wagon Wheel Demonstrator, Devil, Horse Owner, Judge Snyder, Mr. Largo, and Eddie; Hank Azaria as Grim Farmer, Maze Operator, Chief Wiggum, Lou, Falcon Owner, French Protestor #2, Dealer/Juice Backney; Tress MacNeille as Dispatch Operator, French Poodle, Dolph, Skanky Girl #1; Pamela Hayden as Jimbo, Skanky Girl #2, and Martin; and Marcia Wallace as Mrs. Krabappel.

Guest Voice Cast: Rudy Giuliani as Himself; Stephen Hawking as Himself