Besides film, TV and commercials, she worked in dozens of professional plays and musicals. She retired from acting at age 25 and became apprentice to the world-renown voice teacher, Bob Corff. Seven years later, they were married. Together, they founded the "Corff Voice Studios" in Los Angeles. Claire also co-authored "Achieving the Standard American Accent" C.D. and workbook. She also co-authored a series of accent CDs and workbooks, which covers learning nearly every accent worldwide. In addition to her private lessons, she teaches at the famous Beverly Hills Playhouse and Lee Strasberg Institute.