Lee Seol-gu

Beom-teol

Moon Yong-il

Gae-teol

Kang In-sung

Death-row criminal

Lee Hyun-woong

Wal-wal

Cho Myeong-yeon

Beol-goo

Yoo Sang-jae

Jeong Tae-soo

Lee Si-hoo

Newcomer

Min Kim

KTX

Park Joon-Soo

Jip-ge / Gae-teol's Cellmate 1

Kwon Oh-yoon

Gae-teol's Cellmate 2

Oh Hyeon-soo

Gae-teol's Cellmate 3