Moon-jung (played by Kim Seo-hyung) is a protagonist in Greenhouse.
Tae-gang (played by Yang Jae-seong) appears in Greenhouse.
Soon-nam (played by Ahn So-yo) appears in Greenhouse.
Hwa-ok (played by Shin Yeon-sook) appears in Greenhouse.
Kyung-il (played by Nam Yeon-woo) appears in Greenhouse.
Choon-hwa (played by Won Mi-won) appears in Greenhouse.
Treatment Meeting Host (played by Hwang Jeong-min) appears in Greenhouse.
Jung-woo (played by Kim Gun) appears in Greenhouse.
