William "Billy" Zabka born in New York City, New York) is an American actor. Zabka is best known for playing "bully" types, such as his role as Johnny Lawrence in 1984's "The Karate Kid". Zabka's family is of Czechoslovak descent; the Czech translation of "Zabka" is "Little Frog."
8th degree black belt in Tang Soo Do under Chuck Norris and Pat E. Johnson. Recently (2006) promoted to the rank of 9th degree black belt in American Tang Soo Do by National Tang Soo Do Congress president Pat E. Johnson