Doc is a wandering Diplodocus (longneck) who goes "where the road takes him." He is shown to be very taciturn and not forthcoming of his past. He first appears in The Land Before Time VI: The Secret of Saurus Rock, and he also reappears in the TV series.
Gallery[]
Doc's legendary scar by a Sharptooth
Doc enters the Great Valley
Lone Dinosaur whips Sharptooth in Littlefoot's song
Doc (showing body) fighting Sharpteeth
Doc in Land Before Time TV series