Kamen Rider Kuuga
The show's lead role went to 2011 Junon Super Boy Contest Grand Prix winner Gaku Sano, portraying Kota Kazuraba. Sano said that he grew up wishing he could be the character from "Kamen Rider Kuuga", and now that he would portray Kamen Rider Gaim he hopes that he will inspire a new generation of boys. Rounding out the main cast are Yutaka Kobayashi as Kaito Kumon/Kamen Rider Baron, Mahiro Takasugi as Mitsuzane Kureshima/Kamen Rider Ryugen, Yuumi Shida from idol group Yumemiru Adolescence as the heroine Mai Takatsukasa, and Yuki Kubota as Takatora Kureshima/Kamen Rider Zangetsu.