Harold Diamond
Acting
Biography
Best known to movie fans as John Rambo's "stick-fighting" opponent in Rambo III, Harold Diamond in reality is one of Florida's most-famous pioneers in the sport of American Kickboxing. Born Harold Roth, he earned the nickname, "Nature Boy", for his long pony-tail, and a habit of wearing blue-jeans into the kick-boxing ring. In the mid-1970s, he became the first martial artist to compete in a kick-boxing match on Miami Beach. Fighting at the Miami Beach Convention Center on South Beach (The same center where Muhammad Ali defeated Sonny Liston for the World's Heavyweight Boxing Title), Roth ran up an impressive undefeated streak all by knockouts. He was "labeled" unbeatable, as he knocked out opponents throughout Miami-Dade and Broward Counties. In 1983 he won a Muay-Thai Championship and soon after retired with an undefeated record of 17-0 with 17 knockouts. His legendary local-fame lead to a Hollywood contract, and a name change to Harold Diamond. But, to south Florida fans, he will always be "Nature Boy" Harold Roth, the greatest kick boxer in the state's history.
Filmography
9 credits
Rambo III
Movie • 1988
Stick Fighter

Hard Ticket to Hawaii
Movie • 1987
Jade

Picasso Trigger
Movie • 1988
Jade

Killing American Style
Movie • 1988
John Morgan

Trained To Kill
Movie • 1989
Loc Syn

Gypsy
Movie • 1990
Montana the Gypsy

King Arthur and the Knights of the Round Table
Movie • 2017
Merlin

Can You Feel Me Dancing?
Movie • 1986
Judo Instructor

Spellbinder
Movie • 1988
Man