This is a list of the characters featured in the Haruhi Suzumiya franchise, written by Nagaru Tanigawa and illustrated by Noizi Ito, which contains a multitude of other secondary, and minor characters who are introduced throughout the course of the series. The main characters in the series are the five members of the SOS Brigade, including the titular Haruhi Suzumiya.

SOS Brigade members

The SOS Brigade is an unofficial club at North High School, founded by Haruhi Suzumiya to investigate mysterious events.

Kyon

Haruhi Suzumiya

Yuki Nagato

Mikuru Asahina

Itsuki Koizumi

Yasumi Watahashi

Other North High students

ENOZ

ENOZ is an all-girl student band featured in "Live a Live" and its anime adaptation "Live Alive", though the band is not named in "Live a Live". The name derives from the last names of the members: Enomoto, Nakanishi, Okajima, and Zaizen. During the high school festival Enomoto (lead singer and guitarist) has tonsillitis and Nakanishi (guitar) suffers a sprained wrist, so Haruhi and Yuki fill in for the missing members. In "Live a Live", the band consists of only three members; the singer/guitarist was split into two characters for "Live Alive". In "Live a Live" the impromptu band performs a full set, while in "Live Alive" they only perform two songs, "God Knows" and "Lost My Music", with Haruhi explaining that she and Yuki didn't have time to learn any more. The episode trims both songs down as inserts. "God Knows" has all of the song save for about half of the guitar solos during the beginning and end, and the entire second stanza and chorus. "Lost My Music" barely finishes the first stanza and chorus, leaving the second and third out. "God knows" and "Lost My Music" were included in the soundtrack EP Suzumiya Haruhi no Tsumeawase (涼宮ハルヒの詰合 TVアニメ「涼宮ハルヒの憂鬱」劇中歌集シングル). The sole vocals for ENOZ are sung by Japanese pop singer and voice actress Aya Hirano, who voices the main character of the series, Haruhi Suzumiya. In addition, Hirano sings the main opening and ending themes for the series. (See a listing of Haruhi Suzumiya albums.) Susumu Nishikawa (西川 進) plays the guitar, Takeshi Taneda (種子田 健) the bass, and Yutaka Odawara (小田原 豊) the drums. In the English version, the songs are performed by Wendee Lee, Haruhi's voice actress. ENOZ is a homage to the real life all-girl J-pop band Zone. Its name is simply "Zone" spelled backwards. The members of ENOZ are:

Agency

The Agency is an organization of espers who believe that Haruhi had converted them into espers in the year 0. Among the members of the Agency are:

Sasaki's group

Other characters