Nobuaki Kakuda (角田信朗 Kakuda Nobuaki), born April 11, 1961 in Sakai, Osaka, is a Japanese Seidokaikan - Karate fighter, who is famous for his first punch knockout win over German 4-time cage combat World Champion Mavrick at 0:56 seconds in the K-1 Fields Europe GP 2005. He is also one of the K-1 organization's regents. He is currently the oldest and shortest (174 cm) partcipant in the K-1 tournaments. He also works as a referee-in-charge and as a ringside judge in these events. He named his son Kenshiro (賢士朗) and daughter Yuria (友里亜) after characters from Hokuto no Ken. He has also sung the theme songs for the Hana no Keiji pachinko-slot games.