Suguru Niragi is a former bullying victim who's become a very dangerous, bully-type person himself. Despite his ominous surface, he has a measure of hidden insecurity, while his monstrous nature reflects itself on his increasingly tormented appearance as the series progresses. Because of this complexity, the role can be quite challenging, but there's no denying that Dori Sakurada does a great job.
Despite his youthfulness, Sakurada certainly has the experience to pull off a role like Niragi. He's acted in well over 50 projects and rose to prominence early in his career as "Kamen Rider Den-0" protagonist Kotaro Nogami, aka Kamen Rider New Den-0. Apart from his heroics in that franchise, Sakurada's arguably best-known works include the teen drama film "Orange," and a live-action TV show based on the romance manga "Coffee & Vanilla."
In an interview with Taiker Magazine, Sakurada shared some thoughts about his acting philosophy that he's used to great effect in projects like "Alice in Borderland." "An actor isn't just a person who is acting," he said. "Being an actor is supplying the feeling that I've not experienced through my own life experience and emotion. Then people can evaluate my value."