‎Itsuki Koizumi(CV.Daisuke Ono) - Apple Music

Maggare Spectacle

The Melancholy of Haruhi Suzumiya Character Song Vol.8 ITSUKI KOIZUMI - EP · 2007
Tada no Himitsu

The Melancholy of Haruhi Suzumiya New Character Song Vol.4 ITSUKI KOIZUMI - EP · 2009
Hare Hare Yukai (Itsuki Koizumi Version)

The Melancholy of Haruhi Suzumiya Character Song Vol.8 ITSUKI KOIZUMI - EP · 2007
Muteki Teki Happiness! (Five Sos Members Version)

Muteki Teki Happiness! - Single · 2025
Tada no Himitsu (off vocal)

The Melancholy of Haruhi Suzumiya New Character Song Vol.4 ITSUKI KOIZUMI - EP · 2009
"Tsumaranai Hanashi desu yo" to Boku wa Iu (off vocal)

The Melancholy of Haruhi Suzumiya New Character Song Vol.4 ITSUKI KOIZUMI - EP · 2009
"Tsumaranai Hanashi desu yo" to Boku wa Iu

The Melancholy of Haruhi Suzumiya New Character Song Vol.4 ITSUKI KOIZUMI - EP · 2009
Maggare Spectacle (technoid goes to hollywood mix)

The Melancholy of Haruhi Suzumiya -Super Remix- Full-Mix · 2009
Machigatte? Sumochi Taberu (off vocal)

Kono Sumochi kara no Sotsugyo - EP · 2009
Machigatte? Sumochi Taberu

Kono Sumochi kara no Sotsugyo - EP · 2009
Hare Hare Yukai (Itsuki Koizumi Version) [off vocal]

The Melancholy of Haruhi Suzumiya Character Song Vol.8 ITSUKI KOIZUMI - EP · 2007
Maggare Spectacle (off vocal)

The Melancholy of Haruhi Suzumiya Character Song Vol.8 ITSUKI KOIZUMI - EP · 2007

The Melancholy of Haruhi Suzumiya New Character Song Vol.4 ITSUKI KOIZUMI - EP

The Melancholy of Haruhi Suzumiya New Character Song Vol.4 ITSUKI KOIZUMI - EP

2009
Kono Sumochi kara no Sotsugyo - EP

Kono Sumochi kara no Sotsugyo - EP

2009
The Melancholy of Haruhi Suzumiya Character Song Vol.8 ITSUKI KOIZUMI - EP

The Melancholy of Haruhi Suzumiya Character Song Vol.8 ITSUKI KOIZUMI - EP

2007

Kyon(CV.Tomokazu Sugita)
Ryoko Asakura (CV: Natsuko Kuwatani)
Yuki Nagato(CV.Minori Chihara)
Mikuru Asahina (CV: Yuko Goto)
Tsuruya-san (CV: Yuki Matsuoka)
Churuya-san (CV: Yuki Matsuoka)
Kyon's Sister (CV: Sayaka Aoki)
SOS-dan
Taniguchi (CV: Minoru Shiraishi)
Emiri Kimidori (CV: Yuri Shiratori)
Kitako Bungeibu Joshikai