Jang Ha-ram
Seo-yeong (서영)
Yang Geun-seok
Yong-seong (용성)
Han Chae-min
Mrs. Seo/Boarding house owner
Kim Dae-hyeon
Yeong-cheol (영철)
Baek In-Kwon
Yeong-boo (영부)
Bae Geon-sik
[Senior/Special appearance]
Kim Soo-ji
[Yeong-boo's girlfriend]
Jeon Ji-hak
[Mrs. Seo's husband]
Lee Deok-hee
[Comic bookstore owner]