Nightwalker/Characters
Tatsuhiko Shido
- Badass Longcoat
- Bishonen
- Bloody Murder - Shido can use his blood as a weapon. In particular, he can change it into a sword.
- Brainwashed
- Dead Little Sister - Shido once had a mother and little sister. After Cain turned Shido into a vampire, he drained the blood of so many people including his own family. His sister was reborn as a vampire, but she decided to join her mother in death.
- Even the Guys Want Him: Cain does.
- Friendly Neighborhood Vampire
- May-December Romance - with Riho.
- Richard Cansino - his English voice actor.
- Takumi Yamazaki - his seiyuu.
Yayoi Matsunaga
- Action Girl
- Dead Twin Sister - When Yayoi and her identical twin sister Kasumi were children, they were playing with matches during an early birthday celebration,causing Yayoi's face to be disfigured. For years Yayoi blamed Kasumi for this, never realizing that Kasumi had made a deal with a Nightbreed to save Yayoi's life. After Kasumi gave her life in helping Yayoi get rid of the Breed, Yayoi ended up with Kasumi's face.
- Emi Shinohara - her seiyuu.
- Hot Chick in a Badass Suit
- Mari Devon (aka Jane Alan) - her English voice actress.
- Tall, Dark and Bishoujo
Riho Yamazaki
- Dorothy Elias Fahn - her English voice actress (as Dorothy Melendrez)
- Friendly Neighborhood Vampire - After Episode 4.
- Girl Friday
- Maaya Sakamoto - her seiyuu.
- May-December Romance - with Shido.
- Parental Abandonment - Riho's parents were killed by a Nightbreed.
- Plucky Office Girl
Guni
- Head Pet
- Ikue Ohtani - her seiyuu.
- Sandy Fox - her English voice actress.
- Snarky Non-Human Sidekick
Cain
- Bishonen
- Depraved Bisexual
- Hideyuki Tanaka - his seiyuu.
- I Love You, Vampire Son
- Lex Lang - his English voice actor.
- Whip It Good - Just as Shido can use his blood as a sword, so Cain can use his as a whip.