Nicholas Pettas is a Greek-Danish karateka, former heavyweight kickboxer and actor, who fought out of Team Spirit AE in Tokyo, Japan. Pettas mainly competed in the promotion K-1 between 1998 and 2007, and was the winner of the K-1 Japan Grand Prix 2001.

Gökhan Saki is a Turkish-Dutch kickboxer and mixed martial artist. He is a Dutch, European and World Muay Thai champion, K-1 World GP 2006 in Amsterdam tournament finalist, K-1 World Grand Prix 2008 in Hawaii champion and former Glory Light Heavyweight Champion. Saki also competed in the light heavyweight division of the Ultimate Fighting Championship.