Herr Karl is played by Jerry Yochelson, of Cranbury, NJ
Born in Washington, D.C. in 1945, Jerry Yochelson began violin lessons at age 7 with Carita H. Page, with whom he studied through high school. In 1998, Jerry organized the Cranbury Scout Band, a concert band open to Boy Scouts, Girl Scouts, and Cub Scouts. He continues to be the bandmaster of this group, which is the only ongoing Scout band in the United States. Also in 1998 Jerry organized the Matzo Balls Band - really a small orchestra - which plays on Jewish Holidays and other occasions at Congregation Etz Chaim Monroe Township Jewish Center, and which he continues to lead. In 2005 Jerry organized the Gourgaud Gallery Group to play chamber music in Cranbury, NJ. He plays first violin in this group. He also serves as music director for all these groups, finding and arranging appropriate music for the events at which they play. Jerry Yochelson is the author of this program, "Wolferl - The Genius in the Child and the Child in the Genius of Wolfgang Amadeus Mozart."

Donna Maria is played by Mari Molenaar, of Plainsboro, NJ
Born in rural Minnesota in 1939, Mari Molenaar began piano lessons at age five from her mother, Geneva Molenaar. Although the lessons stopped at age 12, Molenaar continued playing for her own enjoyment. Then in 1986, she was inspired to return to lessons, first with Lora Verkovsky, then Mark Zilberquit and Marina Young, all from Russia. In 1990, she spent five weeks with the Moscow Conservatory in America taking lessons with Lazar Berman, Sergei Dorensky, Evgeny Malinin, Evgeny Mogilevsky, Alexei Nasedkin, Nikolai Petrov and Michael Voskressensky. For fourteen years, Dr. Molenaar presented a recital at New Jersey State Prison for the Learning is for Everyone Program (LIFE) featuring works by various composers, such as, Bach, Chopin, Debussy, Mozart, Rachmaninov, Scarlatti, and Schubert. A founder of the Greater Princeton Area Steinway Society, she served as Secretary, Vice-president and then President. Now a resident of Plainsboro, Dr. Molenaar retired from the State Department of Education in 2002 after 25 years in special education and currently works as a consultant in that field.