Kuusuke Saiki
斉木 空助
Kuusuke is Kusuo's older brother who lives in England. He is considered a genius with an IQ of 218 but he always feels inferior to Kusuo because he has no psychic powers and always loses to Kusuo.
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Saiki Kusuo no Ψ-nan
Supporting -
Saiki Kusuo no Ψ-nan 2
Supporting -
Saiki Kusuo no Ψ-nan: Kanketsu-hen
Supporting -
Saiki Kusuo no Ψ-nan: Ψ-shidou-hen
Supporting
Nojima, Kenji
Japanese
Ishigami, Shizuka
Japanese
Patton, Chris
English
Zieja, Joe
English
Marot, Tony
French
Cannella, Mirko
Italian
Romuti, Gab
Portuguese (BR)
