Wendee Lee / Haruhi Suzumiya (voice)
Crispin Freeman / Kyon (voice)
Michelle Ruff / Yuki Nagato (voice)
Stephanie Sheh / Mikuru Asahina (voice)
Johnny Yong Bosch / Itsuki Koizumi (voice)
Bridget Hoffman / Ryoko Asakura (voice)
Kari Wahlgren / Tsuruya-san /  Kyon's Little Sister (voice)
Sam Riegel / Taniguchi (voice)
Brianne Brozey / Kunikida (voice)
Mela Lee / Reiko Hayama (voice)
Michael McConnohie / Okabe Sensei (voice)
Tony Oliver / Yamane (voice)
Tyler Shamy / Godou (voice)
Tomo Adachi / Nanaka Onogi (voice)
Mai Aizawa / Yoshimi Sakanaka (voice)
Ryôta Asari / Noboru Toyohara (voice)
Tomoyuki Higuchi / Kennosuke Arakawa (voice)
Mayu Iino / Girl (voice)
Yoriko Nagata / Mizuho Saeki (voice)
Noriko Obata / Reiko Hayama (voice)
Naoko Sugiura / Sakiha Hinata (voice)
Takuto Yoshinaga / Boy (voice)
Hitomi Harada / Kontone Kenmochi (voice)
Kenji Takahashi / Daichi Sakaki (voice)
Eri Taruta / Kanea Yura (voice)
Eiji Yanagisawa / Okabe-sensei (voice)
Hitoshi Yanai / Masaki Uematsu (voice)