Kojiro (played by Kanichiro Sato) is a protagonist in Sisam.
Einosuke [Kojiro's older brother] (played by Takahiro Miura) appears in Sisam.
Zensuke (played by Masato Wada) appears in Sisam.
Ainu Woman (played by Sahel Rosa) appears in Sisam.
Young Ainu Man (played by Ryota Bando) appears in Sisam.
Village Leader (played by Takahiro Hirano) appears in Sisam.
Kojiro's Mother (played by Yasuko Tomita) appears in Sisam.
Kojiro's Childhood Friend (played by Kotone Furukawa) appears in Sisam.
