Continuity mistake: In the scene where Thunderbolt and Lightfoot are in the car with the crazy driver. The car goes over the embankment and as it flips you can see a wheel break off. A short time later they both drive off in the same car, with the wheel attached again.
Continuity mistake: When the girl is yelling rape at the motel, she is wearing a bra and panties. After getting some money for a cab, she puts on her dress and she is bra-less.
Answer: He is given what it known as "last billing" (which you see as "and George Kennedy). Nowadays it can also be referred to as "special billing." This is typically done for more famous actors who are playing a smaller role, or in this case a non-titular character. It was done on purpose and most likely as part of his agent's negotiation with the film studio.
Bishop73