User blog comment:Sonamy4ever2912/Voice Cast for the Deadly Six/@comment-4802891-20131007043706

Ok for those who are, like me, into seiyuu, according to wiki :

Nakata Jôji for Zavok (100% confirmed)

Chafûrin is Zomom (unverified, and I'm not familiar with his voice enough to confirm)

Mugihito is Zik (great seiyuu here! He's known for doing old men and I'm pretty sure it's him too)

Tai Yûki is Zor (confirmed on his official website)

Others weren't stated but so far we got some good performers!