If you're trying to find out who played a certain character in the show, take a look at our Cast List. It lists a large number of past and present characters, alongside the name of the actor or actress who played them.
The list is far from complete, so you may not be able to find the character you're looking for. If you can't, post a topic on our Forum, asking for the name of the actor. One of our members will hopefully be able to help you out within hours.