Characters
Maia Mizuki (水樹 マイア Mizuki Maia?)
Voiced by: Mai Nakahara (Japanese), Carrie Savage (English)
Maia is the protagonist of the series. She has lost all of her childhood memories, because as a child, Maia was put into a one year coma because of a car wreck. The cause of it was because while in the car with her parents, the controls malfunctioned. Her parents died. Waking up, she was introduced to a man claiming to be her grandfather. In episode 11, Maia tells the girls of Nereids her story of waking up from her coma. During the flashback, Maia asks her grandpa why whenever he smiles at her, he seems sad. At the end of the episode, she is looking at a picture of her grandfather then she asks, "What is it that you were keeping hidden from me, Grandpa." Maia is an excellent student, yet having been rejected by the Ocean Agency,elite paramilitary Ocean Agency, part of the futuristic world government and only the best, most intelligent, and physically fit students are eligible for admission. Maia, was set to become one of the few. Maia has found work with Nereids, an unorthodox help-for-hire organization inspired by the Greek mythological Nereids. She is optimistic, hard working, and honest, yet a naïve and shy cute girl-next-door. Maia is in search of her past while working with Nereids.
Rena Honjo (本城 レナ Honjō Rena?)
Voiced by: Sayaka Ohara (Japanese), Wendee Lee (English)
Leader of the Nereids Kamchatka branch. Rena is capable, elegant, and cunning, although she can be cold at times. Although not the branch manager in title, she is the de facto leader and makes the decisions. She is cool and calculating and her sharp instincts enable her to know the weaknesses of other people. Rena has no moral qualms about seducing others for manipulation or for a weapon use. She is also frugal with money and deducts pay from salaries under even the slightest pretext.
Shizuka Hayama (葉山 静香 Hayama Shizuka?)
Voiced by: Kana Ueda (Japanese), Michelle Ruff (English)
Busty and bespectacled with purple hair, Shizuka is a brilliant mechanic who grew up in an inner city district of Shibuya and knows many people there. She is known for her poor shooting aim and is friendly, casual, and trusting with a voracious appetite for food.
Gloria (グロリア Guroria?)
Voiced by: Masumi Asano (Japanese), Megan Hollingshead (English)
Loud, spontaneous, tomboyish, and somewhat reckless with a ganguro style complexion, Gloria is a trigger-happy champion marksman and the weapons specialist with a grudge against Rena for deserting her on a past mission. She tends to stick to her guns and loves to shoot things up and she does not get along with Yu. Gloria loves money and bothers Rena about how much she owes her. She is the only character without a regular civilian outfit.
Yu Park (朴 ゆう Paku Yū?)
Voiced by: Yuko Kaida (Japanese), Erika Weinstein (English)
Silent, brooding, nihilistic, and a loner, Yu is a ridiculously strong fighter and hand-to-hand combat specialist. She had her license revoked in the past for destroying private property and injuring several police officers (including Detective Yagi) and bystanders. She has a loyalty to Rena, but does not get along too well with Gloria, where comically they are usually paired up on assignments, and constantly hits her. Yu's interests include animals and travel.
Tsukasa Takagi (高城 つかさ?)
Voiced by: Sakura Nogawa (Japanese), Hunter MacKenzie Austin (English)
Maia's best friend from her Ocean Agency days who got accepted, despite having average grades. She and Maia had made a promise to work with each other.
Tsutomu Hanaoka (花岡 勉 Hanaoka Tsutomu?)
Voiced by: Mitsuo Iwata (Japanese), Doug Stone (English)
The inept branch manager of the Nereids Kamchatka branch. He gets pushed around by his female co-workers. Hanaoka has a wife and a daughter Yukari.
Yukari Hanaoka (花岡 勉 Hanaoka Yukari?)
Voiced by: Ami Koshimizu (Japanese), Stephanie Sheh (English)
Tsutomu Hanaoka's daughter. She gets displeased with her father's ineptness at times, especially when he lied about being a dashing, bold, detective, but still loves him dearly.
Kosuke Yagi (八木 浩輔 Yagi Kōsuke?)
Voiced by: Hidetoshi Nakamura (Japanese), Stephen Martello (English)
The chief inspector of the Kamchatka city police force, he gets stressed when it comes to Nereids. One of his biggest burdens is Yu who injured him in the past.
Millie (ミリィ Mirī?)
Voiced by: Junko Noda (Japanese), Mia Bradly (English)
Shizuka's friend (and later Maia's) who is a skilled race car driver. She is inspired by her great-grandmother Ai Mayuzumi (the protagonist of the manga version which is a prequel to this story). Ai was Maia's father's bodyguard.
Wong (ウォン Won?)
Voiced by: Kenji Nomura (Japanese), Patrick Seitz (English)
Son of their mother's fourth husband.
Chang (チャン Chan?)
Voiced by: Shinji Kawada (Japanese), Sam Riegel (English)
Son of their mother's seventh husband.
Lee (リー Rī?)
Voiced by: Tomomichi Nishimura (Japanese), JB Blanc (English)
Son of their mother's second husband and the oldest of the Wong-Chang-Lee brothers.
May (メイ Mei?)
Voiced by: Hitomi Nabetame (Japanese), Kirsten Potter (English)
Sister of the Wong-Chang-Lee brothers (the daughter of their mother's 14th husband). She is more level-headed and comptetent than they are. She is a martial artist and also wants to find the treasure of Elpida, to which end she stole a submarine (which gets repeatedly confiscated by the Nereids and subsequently stolen again by the family). The submarine was named Agnes for their mother. Shizuka renamed it Yomogi-1.
Tony Long (トニー·ロン Tonī Ron?)
Voiced by: Shinpo Chiba (Japanese), Liam O'Brien (English)
A mysterious man in sunglasses who can be seen following Maia throughout the series.
Shou Mizuki (水樹 Mizuki Shō?)
Shou Mizuki (old) Voiced by: Mugihito (Japanese), Alfred Thor (English).
Shou Mizuki (young) Voiced by: Fumihiko Tategi (Japanese), Yuri Lowenthal (English)
Maia's Grandfather who raised her after she awoken from her coma five years ago. He tried to help her regain the memories she lost in the supposedly recent accident that claimed her parents. Shown only in flashbacks, he died right before the first episode. His last word to her, "daphne", refers to a laurel tree in their former home. When Maia uncovered the buried time capsule where the tree once stood in Elpida, Grandpa was revealed to be her big brother. The siblings were placed in hibernation pods over a century ago when their parents and undersea city were quarantined by the Ocean Agency. He woke up 60 years prior to she did and was force into the government coverup. Maia did not age during her slumber.
Yoichi Mizuki (水樹 Mizuki Yoichi?)
Voiced by: Fumihiko Tategi (Japanese), John Smallberries (English)
Maia's father.
Meiko Mizuki (水樹 Mizuki Meiko?)
Voiced by: Akiko Hiramatsu (Japanese), Elise Baughman (English)
Maia's mother.
[edit]Running gags
Daphne in the Brilliant Blue has running gags throughout the show:
Rena deducting pay off salary for any botches, usually Gloria or Maia.
Yu hitting Gloria when in disagreements.
Maia hitting or falling on her head.
Maia being kidnapped by the Wong-Chang-Lee brothers as bait.
Yagi being terrified by Yu's presence.
Hanaoka's daughter getting angry at her father.
May and the Wong-Chang-Lee brothers taking the submarine back from Nereids who do the same.