Toki is the second eldest of the four North Star disciples adopted by Ryuken. He is however the biological brother of Raoh but only an adoptive
brother to Jagi and Kenshiro.
During the worldwide nuclear war Toki was infected by radiation which turned his hair white and left him terminally ill. During his years of training Toki had shown incredible potential and could have been the chosen disciple to carry on the style of Hokuto Shinken. Toki gave up his claim to be the successor and became a wandering healer who eased the suffering of the victims of the new world and the people saw him as a miracle maker.
In the English dub of the Fist of the North Star TV series by Manga Entertainment Toki was only voiced in a few flashbacks by Kirk Thornton since the dub ended at 36 episodes.
In the English dub of New Fist of the North Star, Toki was voiced in another short flashback by Charles Campbell.
In the English dub of Legends of the Dark King: A Fist of the North Star Story, David Wald voices Toki.