When you’re ready to accept work and be able to perform it at world-class level. You’ll be put into the mix with some of the best, most established actors on the planet, so your chops have to be in order. An Agency is only as good as you are. The more you can bring to an Agency, the more invested they’ll be in you. You’ll still need to market yourself, so knowing how to do that is going to be important for you anyway, (See #9 on the 10 Free Tips for more on Marketing). Whether you have an agent or not, a huge part of this business is being available and ready when the opportunity comes.