Sheriff is the highway patrol car who serves as Radiator Springs' sheriff in Pixar's Cars.
The character is a black-and-white 1949 Mercury Police Cruiser. He is the first resident to encounter Lightning McQueen after the racer accidentally damages the town's main road while fleeing from a pursuing convoy.
Sheriff helps establish Radiator Springs as a community with its own local authority and traditions. He later participates in the town's effort to teach McQueen responsibility, rather than allowing the newcomer to treat the residents as obstacles.
The name Sheriff is a character title rather than a personal name. That distinction matters because several Radiator Springs residents are identified by descriptive names or occupations, including Sarge and Flo. Sheriff is voiced in English by Michael Wallis, a Route 66 historian and advocate.