How we categorize actors

It is interesting what causes us to categorize particular actors. My wife and I are big old movie fans, but we are not into horror movies. Thus, our mental pigeonholing of Boris Karloff and Peter Lorre is much different that it might be with many people. First and foremost, we think of Karloff as Mr. Wong and Lorre as Mr. Moto, two of the famous oriental detectives. We have enjoyed those series of movies tremendously and that is how we think of those two actors.