Cast from Cheer Up Mr. Lee

Hong Wan-pyo

Byeong-heon

Heo Joon-seok

Seung-bo

Yang Hyun-min

Beom-su

Kim Young-hyeon

Young-hyeon

Lee Byeong-heon

Staff

Kang Hyung-chul

Cameo

Kang So-ra

Cameo

Shin Yeon-sook

Byeong-heon's mother