Rokuro Okajima (also known as Rock) is the main male protagonist of the manga/anime series Black Lagoon. He is a Japanese salary man who formerly worked for Asahi Industries in Tokyo until he was taken hostage by the Lagoon Company and subsequently joined them as a member. He is voiced by Daisuke Namikawa in the Japanese version of the anime and Brad Swaile in the English version, the latter of whom also voices Light Yagami.