Paul "The Sting" Slowinski is a Polish kickboxer, a four-time World Muay Thai Council (WMC) Muay Thai World champion and two-time K-1 World GP 2006 in Auckland and K-1 World GP 2007 in Amsterdam champion. After two years training in Amsterdam, Netherlands under Ernesto Hoost, Slowinski moved back to Adelaide in 2009 and began to teach and train out of Rikers Gym. He has competed in the K-1 and SUPERKOMBAT promotions.

Patrice "The Dark Ronin" Quarteron is a French heavyweight kickboxer, fighting out of Évry, Essonne. He is two time French and European Muay Thai champion and current IKF Muay Thai Super Heavyweight World champion.