610 is a middle aged man with raven black hair that is cut short, pale skin, a toned build and has stitches running up his shoulders and center of his chest to his jawline and chin. Like his son, he has heterochromia. His left eye is glowing reddish orange and his right eye is blue, it's also possible his eyes change color depending on the angle.
Inmate 610 is the only successful escapee from Nanba Prison.
|Main||Jyugo | Uno | Rock | Nico | Hajime Sugoroku|
|Inmates||Tsukumo | Honey | Trois | Musashi | Liang | Upa | Qi | Fuji-san | Kusatsu | Enki Gokuu | Ruka Gojou | Hachiman|
|Guards||Seitarou Tanabata | Yamato Godai | Samon Gokuu | Kenshirou Yozakura | Kiji Mitsuba | Inori Hakkai | Damian | Mao Nimaijita | Nijimasu Nanairo | Tomato Ichijou | Hitoshi Sugoroku | Houzuki Sanzou | Daisen Rokuriki | Daisen Kokoriki | Daisen Youriki | Genrou Byakuya | Ahato | Sanohana Hiiragi | Inohana Tsubaki | Shinohana Sazanka | Ninohana Kikiyou|
|Nanba Staff||Momoko Hyakushiki | Shin Sauzando | Chikako Senryoubako | Mitsuru Hitokoe | Dread | Shiro | Okina Otogi | Kazari Otogi | KAGU-8|
|Antagonists||Man with the Scar | Elf|
|Other||Kuu | Haku | Yamatomaru | Hanzou Hattori | Noriko Sanzou | Hihi Gokuu | Inmate 610|