Doc Hudson

Doc Hudson, also known as The Fabulous Hudson Hornet, was a former dirt track racer who served as Radiator Springs' judge and doctor, prior to his death in between the events of Cars: Race-O-Rama and Cars 2. Doc was also Lightning McQueen's crew chief and racing mentor. During his racing days, Doc's number was 51 and he won three Piston Cup trophies. Unfortunately, in 1954, Doc had a big crash that ended his racing career. Doc was the deuteragonist of the original Cars film.