Aleksandr N. Pitchkounov is a former Russian heavyweight kickboxer and kyokushin karateka competing in K-1. He was the runner up at the K-1 World GP 2007 in Hawaii and K-1 World GP 2008 in Taipei tournament.

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.