Hero Jaejoong
Shin Jae-joon
Choi Hyun
Self
Myung-jin
Jaejoong
Lee Goon
Kim Kyung-tak
Cha Moo-won
Park Seonsu / "Doctor"
Heo Young-dal / Jang Dong-chul
Himself
Kim Seon-woo
Himself (as Youngwoong/Hero Jaejoong)
Bong Pil
Host
Guest