Billy Mauch was born on July 6, 1921 in Peoria, Illinois, USA as William John Mauch. He is known for his work on The Prince and the Pauper (1937), Penrod and Sam (1937) and Penrod and His Twin Brother (1938). He was married to Marjorie Barnewolt. He died on September 29, 2006 in Palatine, Illinois.