Bae Yu-ram

as Welfare staff

as Self (1 episode)

as Mr. To (3 episodes)

as Lee Yu-jin (10 episodes)

as [Youtuber] (1 episode)

as Park Chan Sung (1 episode)

as Dong-hwa

as Jung Ho-kyu (Eps 1, 2) (2 episodes)

as Lecturer

as Hyeok Su

as Jo Hyun-soo

as 5-7 (6 episodes)

as Lee Young-chan

as Hacker Park (6 episodes)

as Jesse (12 episodes)

as Yoo-ram

as Quarantine officer

as Park Chan Young (2 episodes)

as Kang Hae-soo (16 episodes)

as Woo-seong

as Suk-pil (1 episode)

as Kim Gyu (2 episodes)