
Quick answer — Misa Kobayashi voices Christmas in Kurau Phantom Memory, Kanami Kurosaki in The Yakuza's Guide to Babysitting, Chizuru Naba in UQ Holder! and 1 more characters.
Misa Kobayashi voices Christmas (Kurau Phantom Memory), Kanami Kurosaki (The Yakuza's Guide to Babysitting), Chizuru Naba (UQ Holder!), Famille (Vassalord.).
Christmas is voiced in Japanese by Misa Kobayashi.