A headshot is an image of an actor that shows a true representation of what the actor looks like. Ideally the headshot needs to be of the head and shoulders. A good headshot is absolutely imperative for any professional actor. It is the first thing that a casting director or agent will see of you & it is based on that headshot that the decision will be made whether to look further into your profile or CV or not. Having a professional headshot will make the difference between being noticed or just being another application in the pile.