- Source of Wealth: Film, Television
- Age: 54
- Birth Place: New York City, New York, United States
- Height: 5′ 8″ (1.73 m)
- Marital Status: Married (Stacie Zabka)
- Full Name: William Michael “Billy” Zabka
- Nationality: United States
- Date of Birth: October 21, 1965
- Ethnicity: Caucasian
- Occupation: Actor, Director, Producer, Screenwriter
American screenwriter, director, producer and actor William Zabaka has an estimated net worth of $500 thousand. He is best recognized for his impressive portrayal of villain roles in a couple of films in the 1980s. In 1984, he appeared in The Karate Kid as Johnny Lawrence. He also produced and co-wrote the film Most, which earned him an Academy Award nomination.
On television, Zabka has appeared on programs such as The Greatest American Hero, Gimme a Break!, CBS Schoolbreak Special, E/R, The Equalizer, To the Ends of Time, Epoch, Python, and Python II. Since 2013, he has been appearing on How I Met Your Mother. His most recent appearance in films were in Roomies, Smiley Face, Cake: A Wedding Story, Starting from Scratch, The Man in the Silo, and Hot Tub Time Machine.
William Michael Zabka was born on October 21, 1965 in New York City, New York, USA. Since 2008, he has been married to Stacie Zabka.