Voiced by - Patrick Seitz

Ragna is the main character of the series.

Ragna is sardonic, rude, and abrasive to anyone he comes across. He is also quick to anger, stubborn, and never misses a chance to use as much vulgar language as possible. In this regard, Ragna is similar to the stereotypical anime delinquent. This is caused mainly by Yūki Terumi practically destroying Ragna's life, which has created a mass of hatred in him; stronger than that of any other individual.

Beneath his gruff exterior, however, Ragna does possess a softer, more compassionate side. He chooses to keep up his public front because of the path he chose – that of revenge, as well as accepting the fact that he's still someone who's committed crimes such as murder. He does genuinely care for certain people, such as Taokaka, Rachel, Noel, Jūbei and, to an extent, his brother, Jin.