First person: I (casual) Address terms: Kuroo Akaashi Konoha Oikawa Futakuchi Tendou Atsumu Suna He responds even if called Sugawara no Michizane (he's kind). High energy, goes along with the mood. Not exactly a refreshing, straight-laced guy. He's part of the "Tadare" (messy/chaotic) group.

First person: I (casual) Address terms: Suga-kun Akaashi Konoha Oikawa-kun Futakuchi-kun Tendou Miya Suna His hairstyle is often mocked. Oikawa occasionally calls him Rooster-kun. He's part of the "Tadare" group.

First person: I (casual) Address terms: Sugawara-san Kuroo-san Konoha-san Oikawa-san Futakuchi Tendou-san Miya Suna Recognized as Bokuto's mother. Seems reliable but is actually a pretty eccentric, salty guy. He's part of the "Tadare" group.

First person: I (casual) Address terms: Suga Kuroo Akaashi Oikawa Futakuchi Tendou Miya Suna Responds when called "Jack of all trades, master of none." He hates it but has basically forgiven it by now. He's part of the "Tadare" group.

First person: Oikawa-san (referring to himself) Address terms: Mr. Refreshing (Sugawara Koushi) Kuro-chan (Kuroo Tetsurou) Kei-chan (Akaashi Keiji) Aki-kun (Konoha Akinori) Niro-kun (Futakuchi Kenji) Satori-n (Tendou Satori) Tsumu-kun (Miya Atsumu) Rin-chan (Suna Rintarou) Calls everyone by nicknames. A flirtatious handsome guy. He's part of the "Tadare" group.

First person: I (casual) Address terms: Sugawara-san Kuroo-san Akaashi Konoha-san Oikawa-san Tendou-san Miya Suna Super handsome. Foul-mouthed. He's part of the "Tadare" group.

First person: I (casual) Address terms: Suga-kun Tetsurou-kun Keiji Akinori-kun Tooru-kun Kenji Atsumu Rintarou Good at guessing. An unpredictable guy. He's part of the "Tadare" group.

First person: I (casual/dialect) Address terms: Suga-san Kuroo-san Akaashi Konoha-san Oikawa-san Futakuchi Tendou-san Suna A flirtatious blonde. Can be quite an idiot. He's part of the "Tadare" group.

First person: I (casual) Address terms: Suga-san Kuroo-san Akaashi Konoha-san Oikawa-san Futakuchi Tendou-san Atsumu People say he looks like a Tibetan Sand Fox. Often takes photos with his smartphone. He's part of the "Tadare" group.