Odd choices to play cops?

I'm half-watching Child's Play on AMC. Chris Sarandon always seemed like an odd choice to cast as the cop (detective) in that movie. He does a good job, I'm not saying he fails in the role. But, it just seems strange to me, to hear him talk like a cop, and have cop mannerisms, etc. I guess he made too much of an impression on me in Fright Night, and in The Sentinel.

Does anyone come to mind for anyone here, as someone who played a cop but just didn't seem like one, for whatever reason?