An elementary school boy who pilots the Shinkalion E5 Hayabusa. He is a massive railway otaku and the protagonist. His catchphrase is "I'm a man who keeps his word and stays on time!"

An elementary school boy who pilots the Shinkalion E6 Komachi. He is cool-headed and his catchphrase is "I've got the picture," often understanding situations before anyone else.

An elementary school boy who pilots the Shinkalion E7 Kagayaki. He is a terrain enthusiast with a hot-blooded personality. His catchphrase is "It's absolutely [adjective]!"

An elementary school girl who claims to be the number one YouTuber in Japan. She uploads many "JS (Elementary School Girl) tries [activity]" videos.

Hayato's father, based at the Kyoto branch. He used to sortie in the Shinkalion 500 Kodama, but currently serves as the driver for the Shinkalion Doctor Yellow.

Hayato's assistant and partner robot. Built as a conductor robot for the E5 Hayabusa, he speaks in a formal conductor's tone.

A woman who works in the command room at the Shinkalion base.

Ryuji's younger brother and the driver of the Shinkalion N700A Nozomi. He has a massive appetite and is a karate expert who won the Tokai Karate Tournament.

Tatsumi's older brother. He formerly piloted the N700A Nozomi but has since become the driver for the Doctor Yellow.

Hayato's younger sister. Her catchphrase is "...is how it is," and she refers to her family members as "Ma," "Bro," and "Pa."