Biography
William Michael "Billy" Zabka (born October 20, 1965) is an American actor, martial artist, screenwriter, and film producer. Zabka is best known for his role of Johnny Lawrence in The Karate Kid (1984), The Karate Kid Part II (1986), and decades later reprises the role of Johnny in the Netflix series Cobra Kai (2018-), along with Ralph Macchio as Daniel.
During the 1980s, Zabka appeared in the comedy movies Just One of the Guys (1985) and Back to School (1986). Zabka also co-starred on the CBS television series The Equalizer as the son of the title character (1986–89). He also played Jack, Audrey's jock boyfriend, in National Lampoon's European Vacation (1985).
During the 1990s and 2000s, he acted mostly in independent films while studying to be a filmmaker. In 2003, he wrote and produced the short film Most, shot on location in the Czech Republic and Poland. Most (aka The Bridge) had its world premiere at the Sundance Film Festival 2003 and won numerous awards at prestigious film festivals, including Best of Festival at the Palm Springs International Festival of Short Films in 2003. In 2004, he was nominated for an Academy Award for Most in the Live Action Short Film category.
Filmography
Cast Credits

Karate Kid: Legends
Character: Johnny Lawrence
MOVIE • 2025

Jake Paul vs. Mike Tyson
Character: Self
MOVIE • 2024

Cobra Kai: Inside the Dojo
Character: Self
TV • 2024

More Than Miyagi: The Pat Morita Story
Character: Self
MOVIE • 2021

The Netflix Afterparty
Character: Self
TV • 2021

Reunited Apart
Character: Self
TV • 2020

Cobra Kai
Character: Johnny Lawrence
TV • 2018

John G. Avildsen: King of the Underdogs
Character: Self
MOVIE • 2017

The Man in the Silo
Character: Kevin
MOVIE • 2016

The Dog Who Saved Summer
Character: Officer Johnny/Apollo
MOVIE • 2015

Where Hope Grows
Character: Milton Malcolm
MOVIE • 2014

Cross
Character: Saw
MOVIE • 2011

Hot Tub Time Machine
Character: Rick
MOVIE • 2010

Smiley Face
Character: Prison Guard
MOVIE • 2007

Cake: A Wedding Story
Character: Sam
MOVIE • 2007

Sweep the Leg
Character: Johnny Lawrence/Hilmself
MOVIE • 2007

Psych
Character: Coach Baggs
TV • 2006

How I Met Your Mother
Character: William Zabka
TV • 2005
The Way of The Karate Kid
Character: Self / Johnny
MOVIE • 2005

Wild Roomies
Character: Slick Salesman
MOVIE • 2004
Crew
Crew Credits

Jud's Decision
Role: Craft Service
MOVIE • 2020

Cobra Kai
Role: Co-Executive Producer
TV • 2018

Cobra Kai
Role: Director
TV • 2018

Sweep the Leg
Role: Director
MOVIE • 2007

Sweep the Leg
Role: Writer
MOVIE • 2007

Sweep the Leg
Role: Music Score Producer
MOVIE • 2007

Most
Role: Writer
MOVIE • 2003

Most
Role: Producer
MOVIE • 2003