Kou Mariya as
herself
Mono Monet = PiCKY (
Twitter,
Twitch), based on tracking follows and side-by-side laugh comparison + DJ stuff + some of her old fans on /vt/
Yae Yuguri = I think.... I
think it's
Aka Mana. She's putting on a voice closer to
this but for reasons I'm maybe 60% here. If someone recognizes her properly please correct me.
Biscotti = Ham (
Twitter,
Twitch), based on mods and side-by-side laugh comparison