The actor Arashi Sanpachi I's haimyô was Sankô and, although he never officially held the name of Arashi Sankô I, he was considered as the founder of the line.

Dates of birth and death unknown. Disciple of Arashi Raishi II, his first stage name was Arashi Otokichi. He took the names of Arashi Mitsuemon II and Arashi Mitsugorô II at unknown dates. He most likely took the name of Arashi Sankô II during the second half of the 1850s. He was recorded as performing the roles of Inuyama Dôsetsu Tadatomo and Ôtsuka Bansaku Kazunari in the 3rd lunar month of 1862 in Ôsaka at the Inari Shibai (miyaji shibai). He also played the roles of Ikoma Hachizô, Hakujukan and Komakine Hachirô in the drama "Iroha Shinsuke", which was staged in Ôsaka at the Tenma no Shibai. This versatile actor, who most likely died in 1870 or 1871, was a mainstay in Ôsaka hama shibai or Kamigata miyaji shibai. He was able to perform a wide range of roles, as a tachiyaku, an onnagata or a jitsuaku.