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Go online and look up the information for each current Disney Channel TV show. Find out who the casting directors are for each show and write down their contact information. Write a brief email to each one where you introduce yourself and express that you'd love to audition for them. Make sure to include your resume and headshots in the email. Proofread the emails and have your guardian read over them and send them for you. Having an agent will help make others take you seriously in the same way that having a portfolio will. Additionally, it can give you good opportunities that you wouldn't have otherwise. Talent agents have connections in the industry, which can help you get your foot in the door. They also manage your audition schedule so that you can focus solely on having great auditions. Try to sign with an agency that has Disney as a client. This will really help your chances of getting an audition with Disney. Go to pro.imdb.com/ and click "Start Free Trial" to get a temporarily free IMDbPro account. Go on Disney Channel actors' pages and click "See Agencies and Managers" to find different agencies that work with Disney Channel stars. Have a guardian help you email your resume and headshots to them. Disney channel's headquarters is located in Los Angeles, California. Because of this, relocating to California could really help you get a leg up on the competition. If you live near Los Angeles, your likelihood of finding an agent who is affiliated with Disney is much higher. While you may not have much of a say in where you live, you can sit down with your guardian and politely ask them if moving is possible. Try saying something like, "I know it's a huge change, but if we moved to Los Angeles, I might be able to take big steps towards my acting dreams. Do you think it would ever be possible to relocate our family there or somewhere that's near there?" Many Disney Channel stars move to Los Angeles as soon as they get a role in a Disney Channel show.
Ask your guardian to help you reach out to casting directors. Hire a talent agent. Talk to your guardian about moving to California.