Characters from the Castle of Shikigami (Shikigami no Shiro) trilogy.
Kohtaro Kuga, or Koh, is the main protagonist of the Castle of Shikigami trilogy, having appeared in every installment of the series.
- Alliterative Name
- Catch Phrase: Has some kind of iteration of asking if a boss wants to be arrested and beaten up, or beaten up and then arrested in all three games.
- Expy: His appearance in the third game is reminiscent of Kyo Kusanagi and to an extent, Kazuki Muto.
- Hell-Bent for Leather: His primary outfit in the third game.
- The Hero: In all three games.
- Heroic BSoD / Manly Tears: In his ending in Castle of Shikigami III, he breaks down in tears and is consoled by Sayo after defeating Tsukiko.
A shrine maiden who appears to be in love with Kohtaro. In the first two games, she is a playable character, but in III, she dies and merges with Kohtaro's original shikigami, Sazae.
A carefree psychic detective who works in the same agency as Kohtaro, and transforms into a werewolf when enraged. Playable in all three games.
Fumiko Odette van Stein
A half-German, half-Japanese witch who appears in all three games.
- Really 700 Years Old: She was born in the year 1605.
- Super-Deformed: An alternate form, "Chibi Fumiko", is playable in the second game.
- The Vamp
- Villain Protagonist
A Taoist and taekwondo teacher from Korea.
- Put on a Bus: He disappears after the second game. His cousin Mihee is assigned to kill him, but they are never shown together in any scenes.
A secret character in the first Castle of Shikigami game, originally appearing in Elemental Gearbolt.
Niigi Gorgeous Blue
- Go Out with a Smile: He dies peacefully in his ending.
- Eyepatch of Power
- Knight of Cerebus: Despite being a protagonist, most of his scenarios are Played for Drama. If he's paired with Kohtaro, Kohtaro is missing in action in the ending, and Roger acts serious with Batu instead of comedic. At least Reika has a little bit of humor when paired with him.
A traveling doctor from Korea, equally skilled in both the healing and assassination arts.
- Berserk Button: She hates what she considers lovey-dovey couples.
- Deadly Doctor
- Laughing Mad: In her ending, she laughs insanely then breaks down in tears.
- Red Right Hand: Her left hand has a sickly purple glow that is capable of killing her targets with a simple touch. In-game, this is her special/bomb attack. It deals heavy damage to a section of a boss, but it has very short range.
- Tears of Blood: Played for Laughs.
A time-traveling police officer. Originally from the Laserdisc game Time Gal.
- Adaptational Modesty: Her redesign downplays a lot of the fanservice from her home game, giving her a coat and a skirt.
- Badass Normal: She reveals to Munchausen that she's one of the last humans born through natural childbirth rather than genetic engineering in her time.
- Bare Your Midriff
- Beware the Silly Ones: She tends to forget her mission but can easily kick as much ass as anyone else in the game.
- Breaking the Fourth Wall: Does this more than the other characters in the game, for example, she talks to the player.
- Cloud Cuckoolander: How she appears to others in several scenarios.
- Genki Girl
- Hidden Depths: Clearly illustrated when she teams up with Batu or Emilio and helps them overcome their emotional baggage.
- Nice Girl: Not only is she one of the comedic characters, but she's also really kind, and given her Hidden Depths, that's saying a lot.
- Nice Hat: It's very puffy.
- Time Stands Still: Her Bomb attack freezes all enemies on the screen for a few seconds.
Bosses from Castle of Shikigami II
Bosses from Castle of Shikigami III
- Affably Evil
- Power Nullifier: In his second phase, he starts off by launching an unblockable arrow that prevents you from using your normal weapon.
- Affably Evil
- The Power of the Sun: She launches gigantic fireballs during one of her later phases.
- Wave-Motion Gun: And the following phase ups the ante with gigantic energy beams.
- The Dragon: To Tsukiko.