Kristoffer Kristofferson (Born June 22, 1936), age 81) was the original voice of Doc from The Land Before Time VI: The Secret of Saurus Rock.
He is an American country music singer, songwriter, musician, and film actor. He is known for such hits as "Me and Bobby McGee", "For the Good Times", "Sunday Mornin' Comin' Down", and "Help Me Make It Through the Night". Kristofferson is the sole writer of most of his songs, and he has collaborated with various other figures of the Nashvillescene such as Shel Silverstein. In 1985, Kristofferson joined fellow country artists Waylon Jennings, Willie Nelson and Johnny Cash in forming the country music supergroup "The Highwaymen". In 2004, Kristofferson was inducted into the Country Music Hall of Fame.