Chomper (a.k.a. "Eager Chomper", as he is called on the official website, and by fans), originally voiced by Rob Paulsen, later Cannon Young and Max Burkholder, and now Issac Brown, is one of the main characters in The Land Before Time franchise. He is a purple Tyrannosaurus, which is one of many species of carnivorous dinosaurs called "sharpteeth" in the Land Before Time series. He first appeared in The Land Before Time II: The Great Valley Adventure, when he was hatched by Littlefoot...
The Land Before Time III: The Time of the Great Giving [DVD] [Eng/Fre/Spa] 
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The Land Before Time III: The Time of the Great Giving [DVD] [Eng/Fre/Spa]