This is a partial character sheet for Kamen Rider 555. Visit here for the main character index. Subjective trope and audience reactions should go on the YMMV page.
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Jyoji Soeno & Sawamura
Jyoji Soeno & Sawamura
Portrayed by: Taro Ishida (Soeno), Koji Iwakawa (Sawamura)
A duo of detectives investigating Orphnoch cases.
- Bumbling Dad: Soeno to his daughter Hikaru, who once stated to Mari how loud he was at one of his calls.
- Good Parents: Soeno cares about Hikaru and her accomplishments.
- Karma Houdini: While they're genuinely decent people, their investigation of Kazuaki Kiba's death was what caused the falling out between Chie and Kiba, yet this doesn't come back to bite them at any point.
- Locked Out of the Loop: Neither of them were aware of Minami's true plans.
- Those Two Guys: Are mainly in the background either discussing Orphnoch cases or just for slight comical moments.
- Unwitting Pawn: To Masahiko Minami.
Hikaru Soeno
Hikaru Soeno
Portrayed by: Manami Miwake
Mari's friend and coworker as well as Detective Soeno's daughter.- Genki Girl: A small one, but she tends to react with glee in her interactions with Mari.
Chie Morishita
Chie Morishita
Portrayed by: Mika Katsumura
Kiba's ex-girlfriend.- Bitch in Sheep's Clothing: As she had previously dated him before his accident, Kiba had thought Chie cared for him. Upon being pursued by Soeno and Sawamura for the interrogation, upon seeing Kiba, Chie, out of pressure, then shifted the blame onto him for Kazuaki's murder without realizing that he actually did the deed just to save herself. Then Kiba decided to off her in their next encounter as Chie was about to explain what she did.
- Killed Off for Real: At the hands of Kiba, though the beginning of episode 3 has Chie swiftly approaching him and Smart Lady before reverting to dust.
- Small Role, Big Impact: Chie's death ended up being a plot point in #16-17 where her brother Yoshimasa tried to find out who murdered her while being unaware that it was Kiba, only for the incident with the Flyingfish Orphnoch result in him becoming the Armadillo Orphnoch, driven by madness into attacking people in an attempt to avenge his sister, which ended up with Takumi breaking out of his Heroic BSoD to become Faiz and protect people.
- Too Dumb to Live: By throwing her ex under the bus, Chie sealed her own fate as Kiba loses all the fond memories he had with her in his mind and decided to kill her on their next encounter.
Kazufumi Mizuno & Tetsuo Itagaki
Kazufumi Mizuno & Tetsuo Itagaki
Portrayed by: Kengo Ohkuchi (Kazufumi), Atsushi Fukazawa (Tetsuo)
Two excavators who ended up in the underground Ryusei School and encountered Hanagata as the Goat Orphnoch.- Killed Off for Real: Courtesy of the electric belt.
Masahiko Minami
Masahiko Minami
Portrayed by: Atsushi Ogawa
A human scientist working with Smart Brain to study the Orphnochs.- Bad Boss: When his facility is attacked by a very angry Kiba, Minami leaves his staff to die while he escapes on his own.
- Dirty Coward: His only priority upon being attacked by Kiba is to run away and let everyone else die to keep Kiba away.
- Dragon with an Agenda: He is working with Smart Brain, but wants to purge all Orphnochs instead of helping them.
- Fantastic Racism: Minami is a xenophobic man who despises the Orphnochs simply for not being human. Rivaling even Kusaka in this department.
- Hate Sink: There is nothing redeemable about Minami, even less than Kusaka; he exists solely to show that Humans Are the Real Monsters.
- Humans Are the Real Monsters: Far more monstrous and cruel than almost any of the Orphnochs (or even Kusaka) in the setting.
- Laughing Mad: Spends his last few moments laughing in Kiba's face as he is dying and gloating that the Orphnochs will never succeed.
- Mad Scientist: Seeks to study the Orphnochs and revert them back to human form.
- Torture Technician: When he has Yuka captured he tortures her with electric shocks.