Red Claw is the main antagonist in the Land Before Time TV series. He is a Tyrannosaurus Rex, one of many creatures in the series referred to as a "Sharptooth" by the characters. He serves as the main antagonist in the show. Red Claw is identifiable by the long red scar extending from his left eye down to the side of his body and arm to his claw. He has two Utahraptor minions named Screech and Thud, who's species are nicknamed "Fast Biters". They are the secondary antagonists. According to Chomper and Ruby, Red Claw is the biggest and meanest Sharptooth of all time.