Full cast of Apartment 404

Yoo Jae-suk

Self

8 episodes

Cha Tae-hyun

Self

8 episodes

Oh Na-ra

Self

8 episodes

Yang Se-chan

Self

8 episodes

JENNIE

Self

8 episodes

Lee Jung-ha

Self

8 episodes

Im Woo-il

Security Guard / Security Guard / Believer / Senior / Teaching Assistant / Aunty / Manager / Security Guard / Disc Jockey / Teacher

8 episodes

Yeonjun

Student Yeon-jun / Self

2 episodes

Jo Se-ho

Self

1 episode

Aiki

Hye-in

1 episode