- 13261 Moorpark Street, Suite 102 Sherman Oaks, CA 91423 (818)789-8460 INTRODUCTION TO THE VOICE-OVER WORLD So, you've always been told you have this great voice...now what Have you been in a voice-over booth before Have you auditioned copy before Do you have the talent to succeed How can you make a living with your voice This six-week course, led by Mary Lynn Wissner, casting director and ...www.toonvoices.com/VoicesClasses.html