One of the biggest mistakes actors make is not knowing their type, or as often referred to as a brand. Most believe that they are actors and can play many roles. In a majority of theater, this is true because of the distance between the actor and audience. But on-camera, which is more intimate, who you really are and what your look represents is obvious, and character make-up and wardrobe can rarely shield that.
Read the entire article How to Find Your Type and Book Work on Backstage.com