When you want to be an on camera talent, the first way anyone sees you to consider you for said role is through your head shot.
What is a head shot? A head shot represents a professional image of a talent that matches their every day look, usually edited a bit by professional photographers to make your images look inviting, confident, professional and like a real actor. Head shots should be updated every time your look changes, so you or your agent are submitting the true look of you. If you are submitted for a role with long brown curly hair and now you have your hair cut to a bob and straight that means you need new head shots immediately.