Kwon Ki-ha
— Eun-gi
Jang Ha-ram
— Seo-yeong
양근석
— Yong-seong
Han Chae-min
— Mrs. Seo / Boarding House Owner
Bae Mi-ra
— Soon-hee
Kim Dae-hyeon
— Yeong-cheol
백인권
— Yeong-boo
Bae Geon-sik
— Senior / Special Appearance
Kim Soo-ji
— Yeong-boo's Girlfriend
전지학
— Mrs. Seo's Husband
Lee Deok-hee
— Comic Bookstore Owner