This, a thousand times. Clichés are not only okay, they are your friend. One of the difficulties in RPGs is that the whole experience is filtered through a whole group of people's different sets of expectations, imaginations and abilities to communicate. Clichés cut through a lot of that because they are based on commonly understood notions. They got to be clichés in the first place because they work.Clichés are okay. Sometimes there is a push to try to be super unique or super out-of-the-box when GMing or playing, and sometimes that can be exhausting and make RPing feel more like work. Characters and ideas should come easily, not with difficulty. Really, sometimes a cliché done well can be exactly what the doctor ordered to bring maximum fun to a game. They are easy to get the whole group in sync over (who doesn't know about the vampire Count being evil, amirite?) and can provide a surprising amount of group unity, provided the clichés included are done with a certain level of class and flair.