Kenneth Mars

From Land Before Time Wiki

Kenneth Mars (b April 14, 1936) is the current voice for Grandpa Longneck.

Mars is also famous for playing other roles: Franz Liebkind in The Producers (1968), Police Inspector Hans Wilhelm Friedrich Kemp in Young Frankenstein, and King Triton in Disney's The Little Mermaid.

Mars has also made many cameos on TV: Hannah Montana, Malcolm in the Middle, The Twilight Zone, Mork & Mindy, The Facts of Life, The Don Knotts Show and The Carol Burnett Show.