He is the strongest of the four Guardians. He can repel the Marble Screw, Luminous Heartiel Action and Extreme Luminario attacks. Moreover, his true form is the spirit of the Dark King.   

(Source: Wikipedia)

Shortly after the fall of the Wicked King, the Queen of the Garden of Light lost her memory and came to Earth, in the form of a 12-year-old girl named Hikari Kujou. Now, she - with the help of Nagisa and Honoka, endowed with new costumes and powers - must find the 12 Heartiels, which hold the key to restoring the Queen's lost memories. For together once again, they are Pretty Cure. <br><br>
(Source: AniDB)

Kenichi Ono is a seiyuu, tarento, and actor from Tokyo.

Baldez