Rock, formerly known as Rokuro Okajima, is the protagonist of the series. He was a Japanese salaryman for Asahi Industries in Tokyo until he was taken hostage by the crew of the Black Lagoon. He joined the Lagoon Company after his department chief, Kageyama, abandoned him in an attempt to cover up the smuggling operation in which Rock had been an unwitting participant. Rock is a humble and mild-mannered person despite being on the business end of guns from friend and foe alike, and often seems surprised at the barbarity of the Southeast Asian crime world. He still wears his tie, short-sleeved dress shirt, and dress pants because although now a pirate, he still retains his business persona. He prefers to use words over weapons when interacting with others. Rock, after joining the Lagoon company, has wondered if he is experiencing Stockholm syndrome.  

Within the Lagoon Company, Rock is usually responsible for account management, diplomacy, negotiation, interpretation, and the occasional errand. Having once worked in the resource investigation department of Asahi Industries, Rock is also skilled in geology. He is also a skilled linguist, being effectively bilingual in Japanese (his native language) and English as well as being familiar with other languages, including Spanish, Romanian and Russian. He also has a surprisingly high tolerance for alcohol, owing to the heavy-drinking lifestyle of a ladder-climbing salaryman. Rock's earnest personality has earned him the interest of several figures in Roanapur, including Balalaika, Mr. Chang, Rowan "Jackpot" Pigeon, Yolanda, Eda (who develops a crush on him), and young Garcia Lovelace, whom he trusts to the greatest degree. In many ways, Rock is the heart of the Lagoon Company, serving as a balance for his more jaded teammates and as a bright spot in the world of darkness that is Roanapur. Dutch has stated that he believes Lagoon Company is complete with Rock not holding a gun, saying his bullets are the kind to ricochet back at them. 

Rock is one of the "luckiest" characters in the series as he managed to survive every single thing he experienced from being taken hostage to being shot at. Thus far, he has survived the wrath of Revy, Balalaika, Roberta, and Sawyer. He is personally appointed by Mr. Chang to help Garcia Lovelace, much to Lagoon Company's disapproval. Rock eventually begins to enjoy his life as a pirate and becomes even more comfortable with corruption. Later, in a conversation with Fabiola, he demonstrates a darker, sadistically ruthless side of his personality clearly influenced by Revy and the Roanapur environment. Benny even points out that there are things about him that scare almost everyone in Roanapur.  While Rock has a family in Tokyo, he does not seem to have much connection to them due to their somewhat apathetic attitude towards him. It was later revealed that he did not pass his college entrance exams on his first try, leading his family to lower their expectations of him. It is known that he has a father, a mother, and an older brother who was academically capable and thus attained a job in the Japanese government. He was born in the 49th year of the Showa period, according to the manga version, which corresponds to 1975-1976.

Okajima Rokuro is a Japanese businessman in a town full of Japanese businessmen. His normal day consists of social drinking with clients and being kicked around by his bosses. He finally gets a break though, as he's sent by his company to the tropical seas of Eastern China to deliver a disc. But his boat gets hijacked by a band of mercenaries hired to retrieve the disc. Rock (as he is newly dubbed by his captors) catches the interest of the only female merc Revy as she thinks he's worth a ransom, taking him hostage. However, the disc that was stolen has a terrible secret that's unknown to Rock, which causes massive confusion and chaos for both him and his kidnappers.

__Alma Mater:__ Tokyo International University

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Bradley "Brad" Swaile is a Canadian voice actor. He has acted in several animated series, known mostly for his anime roles; particularly that of Amuro Ray in the original Mobile Suit Gundam series and movies and Quatre Raberba Winner in Gundam Wing. Swaile is also known for his roles in Dragonball Z (The Ocean Group Dub), as Adult Gohan, and X-Men: Evolution, as Nightcrawler. He can be currently heard as lead male Rock in Black Lagoon and Light in the hit anime Death Note and the same character in its dubbed live action counterpart.

Okajima Rokuro - now known almost exclusively as 'Rock' - was once a typical, put-upon Japanese businessman. Then, on a routine business trip, he was kidnapped and ransomed by the Lagoon Company: a band of mercenary pirates operating out of the crime-riddled city of Roanapur. Abandoned by his bosses, he joined the Lagoon Company. Now he must try and stay afloat amongst the ever-shifting politics of the criminal underworld, while simultaneously avoiding death at the hands of his quick-tempered, gun-toting co-worker, 'Two Hand' Revy.
 
(Source: Anime News Network)

Roberta, the terrorist-turned-maid that made her appearence in the first season of 'Black Lagoon', returns in this five-episode OVA series - and this time, all bets are off! 
Roberta's benefactor, the patriarch of the Lovelace clan, is murdered during a political rally. The assassin's trail soon leads back to Roanapur - so now she has returned on a mission of vengeance! However, close behind her is the new patriarch, Garcia, as well as Roberta's apprentice (and maid), Fabiola Iglesias. As the body count of Roberta's bloody rampage mounts, forces from within the corrupt island (which includes the Lagoon Company), as well as overseas converge on what threatens to escalate into all-out war!

Rokurō Okajima is just an average Japanese salaryman, living an average life. But when he's taken hostage by the crew of the Black Lagoon, Rokurō finds himself thrown headfirst into a deadly world of outlawed heroes, brutal villains, and blazing gunfights. Where he ends up is anyone's guess, but one thing is for certain—he's in for a wild ride!
 
(Source: Viz Media)

Special omake episodes from the Blu-Ray releases, showing the heroines and foes in funny, uncommon situations.

Rock (Okajima Rokuro) was just a normal Japanese businessman, but through a series of unlikely events, he found himself part of the "Lagoon Company," a group of transporters who do a little pirating on the side. Together with Dutch, Revy, and Benny, he sails the seas of Asia aboard the modified torpedo boat "Black Lagoon." 
Their base, the lawless city of Roanapur, is just barely balanced on the brink of outright war, controlled and occupied by criminal organizations from across the globe. Standing above the rest are Balalaika of Russia and Chang of Hong Kong. 
Our story finds Roanapur just a little while before Rock, with Revy in tow, is due to head back to his old home of Japan. 
It is a tale about soldiers who once fought united under a cause in a land of sandy winds, the strictly personal reunion of a captain and her one-time subordinate...