Zero kids ~ need two
yuki and kaname kids~ need three
Sayori Wakabakids~need two
Akatsuki Kain~ need two
Hanabusa Aidou~ need two
Maria Kurenai~ need one to play as twins
Rima Toya~ need two people to play as twins
Ruka Souen~ need two people to play as twin and one child
Seiren~ need one
Senri Shiki~ need three
Takuma Ichijo~ need two