Buckminster a.k.a Buck is a major character in Ice Age: Dawn of The Dinosaurs and returns in Ice Age: Collision Course as one of the main protagonists. He is a weasel that lives in an underground dinosaur world when he fell into it, many years ago. He is also the main character of the Ice Age: Dawn of The Dinosaurs video game. To many people, he was a scene-stealer in the movie and many fans wish for him to get his own movie. He is voiced by Simon Pegg in the film, and James Patrick Stuart in the video game.