Harold Diamond
Known for Acting · 9 credits
- Also known as
- Nature Boy · Harold Roth
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.
Known For
Movies (9)

Rambo III
1988
as Stick Fighter

Spellbinder
1988
as Man

Hard Ticket to Hawaii
1987
as Jade

Picasso Trigger
1988
as Jade

Trained To Kill
1989
as Loc Syn

Killing American Style
1988
as John Morgan

Can You Feel Me Dancing?
1986
as Judo Instructor

King Arthur and the Knights of the Round Table
2017
as Merlin

Gypsy
1990
as Montana the Gypsy
About Harold Diamond
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 f… With 9 credits spanning from 1986 to 2017, Harold Diamond has appeared in 9 films and 0 TV shows.
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Most Popular Harold Diamond Movies
- Rambo III (1988) — as Stick Fighter
- Spellbinder (1988) — as Man
- Hard Ticket to Hawaii (1987) — as Jade
- Picasso Trigger (1988) — as Jade
- Trained To Kill (1989) — as Loc Syn
Where to Watch Harold Diamond Films
Most Harold Diamond movies and series are available to stream on CineFlixo in full HD, completely free and without signup. Browse the complete filmography above to jump directly to any title. For more films and the latest web series featuring Harold Diamond, check our movies catalogue and browse page.