Hayato's attire consists of a white t-shirt with a dark-blue vertical stripe from the large collar down and dark-blue sleeves, a shade of green short pants, and green sneakers with a white tongue and pink outer soles.
When driving the Shinkalion E5 Hayabusa, Hayato wears a full green bodysuit with white sections and pink stripes, and a set of headphones with glowing green lines.
Hayato Hayasugi is an eleven-year old cheerful-hearted boy, who gets interested in trains. Hayato has a greater sense of friendship and justice as strong and skilled pilot. He lives to ride and watch Shinkansen, and compares everything to them, even if doesn't make sense to anyone but himself. Despite his obsessive personality, he is also friendly, loyal, and just.
- Hokuto Hayasugi (father)
- Sakura Hayasugi (mother)
- Haruka Hayasugi (younger sister)
- Shashot (teammate)
- Akita Oga, Tsuranuki Daimonyama, Shinobu Tsukiyama (friends, teammates, classmates)
- Azusa Ueda (classmate)
- The rest members of Team Shinkalion (friends, teammates)
- Futaba Mihara (superior)
In the series
- His birthday is October 17th, 2007, which is exactly three days after the establishment of the Railway Museum, and exactly two years before the first public display of the E5 Series Shinkansen in real life.