Mirko Filipović, better known by his ring name Mirko Cro Cop, is a retired Croatian professional mixed martial artist, kickboxer and amateur boxer. He is mostly known for his time in Pride Fighting Championships. Cro Cop fought in the UFC, K-1, RIZIN and Bellator. He is widely considered one of the greatest Heavyweight Kickboxers and MMA fighters of all time.
Mark Richard Hunt is a New Zealand former professional mixed martial artist and kickboxer. Hunt competed in the Ultimate Fighting Championship (UFC) until 2018 and was the winner of the 2001 K-1 World Grand Prix. He is known as "King of Walk-Offs" due to his popularization of walking away and stopping attacks before the referee officially ends the match.
Jérôme Philippe Le Banner is a French kickboxer, mixed martial artist, and professional wrestler. Le Banner fought for most of his career in K-1 and became known for his aggressive fighting style and knockout power. He is a 2-time K-1 World Grand Prix runner up, a 2-time K-1 Preliminary Grand Prix champion, and is a multiple time world champion in Kickboxing and Muay Thai. He holds notable victories over Ernesto Hoost (twice), Francisco Filho, Mark Hunt, Sam Greco, Mike Bernardo (twice), Peter Aerts, Rick Roufus, Remy Bonjasky, Tyrone Spong, Stefan Leko (twice), Masaaki Satake, Maurice Smith, Gary Goodridge (twice), Musashi (twice), Cyril Abidi and Choi Hong-man (twice).
Alistair Overeem is a Dutch former professional mixed martial artist and kickboxer. He is a former Strikeforce Heavyweight Champion, Dream Heavyweight Champion, K-1 World Grand Prix Champion, and was the first fighter to hold world titles in MMA and K-1 kickboxing at the same time. Overeem is also a one-time challenger for the UFC Heavyweight Championship.
Sem "Semmy" Schilt is a Dutch actor and former kickboxer, Ashihara karateka and mixed martial artist. He stands 212 cm and weighs 116 kg. Schilt holds the distinction of being the only kickboxer to have won 5 major heavyweight tournaments, being a four-time K-1 World Grand Prix Champion and one time Glory Heavyweight Grand Slam Champion. He also held the K-1 Super Heavyweight Championship and the Glory Heavyweight Championship titles. He is the only fighter in K-1 history to win the world championship three times in a row, and also shares the record with Ernesto Hoost for most Grands Prix won, with four.
Ryo Chonan is a retired Japanese professional mixed martial artist. A professional competitor from 2001 to 2013, Chonan competed for the UFC, PRIDE, DEEP, DREAM, Pancrase, and World Victory Road. Chonan is the former DEEP Middleweight Champion and the former DEEP Welterweight Champion.
Cheick Kongo is a French mixed martial artist and former kickboxer who fights in the Heavyweight division. A professional MMA competitor since 2001, he has also competed for the Ultimate Fighting Championship and Bellator.
Cyril Abidi, nicknamed "The Marseille Bad Boy", is a French former heavyweight kickboxer and mixed martial artist. A professional competitor from 1998 until 2007, he is perhaps best remembered for his upset first-round knockout win over Peter Aerts, which he followed up with another win in the rematch a month later. Abidi also defeated K-1 standouts Ray Sefo and Petar Majstorovic.
Eduardo Arturo Sanchez is an American retired professional mixed martial artist who last competed in the Heavyweight division. A professional from 2004 to 2014, he competed for the UFC, Bellator, Titan FC, Final Fight Championship, and King of the Cage.
Antônio Carlos "Bigfoot" Silva is a retired Brazilian professional mixed martial artist and kickboxer who formerly competed in the Heavyweight division. Silva has competed for the UFC, Strikeforce, EliteXC, Cage Rage, Fight Nights Global, World Victory Road, K-1 HERO'S, and Cage Warriors. He is the former EliteXC Heavyweight Champion, Cage Rage World Heavyweight Champion, and Cage Warriors Super Heavyweight Champion.
Siala-Mou Siliga, often billed as Mighty Mo is a former American Samoan kickboxer, bare knuckle boxer, boxer and mixed martial artist who competed in the Heavyweight division. His K-1 achievements include winning the K-1 World Grand Prix 2004 in Las Vegas II and the K-1 World Grand Prix 2007 in Hawaii tournaments. In mixed martial arts, he has competed for K-1 Hero's, Bellator MMA, DREAM, Road FC and also participated in the Dynamite!! USA and Dynamite!! 2008 events. On September 24, 2016 Siliga won the Road FC Openweight Tournament at Road FC 33 by knocking out Choi Hong-man of South Korea.
Patrick Joseph Barry is a former American mixed martial artist and kickboxer who competed as a heavyweight in the Ultimate Fighting Championship. He is particularly known for his low kicks.
Vitor Miranda is a Brazilian former kickboxer and mixed martial artist. He was the K-1 Brazil 2005 and K-1 Turkey 2007 super heavyweight tournament champion.
Justin McCully is a retired American professional mixed martial artist and professional wrestler who most recently competed in the Heavyweight division of the RFA. A professional competitor since 1997, McCully has also formerly competed for the UFC, RINGS, Pancrase, It's Showtime and Jungle Fight.
Ewerton Teixeira is a Brazilian professional kickboxer, mixed martial artist, and Kyokushin Kaikan karateka. Teixeira obtained his first K-1 title in 2008 at K-1 World Grand Prix 2008 in Fukuoka by beating Keijiro Maeda in the final. He is training K-1 at the Ichigeki Academy Kyokushin Kaikan in Tokyo, Japan. Despite the short career for a kickboxer, Teixeira has notable wins against K-1 legends: Jerome Le Banner, Errol Zimmerman and Musashi.
Michael Wade Wessel is an American mixed martial artist who last competed in 2016. A professional competitor since 2007, Wessel formerly competed for the Ultimate Fighting Championship, Bellator, and was a contestant on The Ultimate Fighter: Heavyweights.
Jared Hamman is an American mixed martial artist that competes in the World Series of Fighting's Middleweight division. A professional competitor since 2006, he has also formerly competed for the UFC, Strikeforce and ShoXC.
James Adam McSweeney is an English kickboxer and retired mixed martial artist. A professional MMA competitor since 2005, McSweeney is well known for being a cast member of Spike TV's The Ultimate Fighter: Heavyweights and competing in the UFC, but he has also competed in major European promotions such as KSW, Cage Rage and BAMMA.
Justin Ray Lawrence is an American former professional mixed martial artist currently competing in the Featherweight division of Bellator MMA. A professional MMA competitor since 2010, Lawrence has also formerly competed for the UFC, Strikeforce, the RFA, and was a competitor on FX's The Ultimate Fighter: Live.
Carlos Augusto "Guto" Inocente Filho is a Brazilian professional mixed martial artist and kickboxer currently signed to ONE Championship. A professional MMA competitor since 2005, Inocente formerly competed for the UFC and Strikeforce in MMA.
Domagoj Ostojic
Badr Hari 
Attila Karacs
Brno, Czech Republic 
Larry Lindwall
Copenhagen, Denmark 
Philippe Gomis
Sapporo, Japan 