Arden Cho Rumi (voice) May Hong Mira (voice) Ji-young Yoo Zoey (voice) Ahn Hyo-seop Jinu (voice) Yunjin Kim Celine (voice) Ken Jeong Bobby (voice) Lee Byung-hun Gwi-Ma (voice) Daniel Dae Kim Healer Han / Additional Voices (voice) Joel Kim Booster Variety Show Host 1 / Idol Host / Romance Saja (voice) Liza Koshy Host (voice) Alan Lee Pilot Demon / Variety Show Host 2 / Mystery Saja (voice) SungWon Cho Abs Saja / Bathhouse Patron / Social Media Fan (voice) Maggie Kang Flight Attendant Demon / Crying Demon / Newscaster (voice) EJAE Rumi (Original Songs Performance) (voice) Audrey Nuna Mira (Original Songs Performance) (voice) Andrew Choi Jinu (Original Songs Performance) (voice) Kevin Woo Mystery Saja (Original Songs Performance) (voice)