On screen
Cast
45 credited performers
Yang Se-hyung
(Episodes 1-present)
Kim Dong-hyun
(Episodes 114-present)
Eun Ji-won
(Episodes 216-present)
Artwork unavailable
Doyoung
(Episodes 227-present)
Lee Seung-gi
(Episodes 1-present)
Yoo Su-bin
(Episodes 180-215)
Cha Eun-woo
(Episodes 116-177)
Shin Sung-rok
(Episodes 85-86, 102-177)
Lee Sang-yun
(Episodes 1-111)
Yook Sung-jae
(Episodes 1-111)
BamBam
Character not listed
Lee Dae-ho
Character not listed
Cha In-pyo
Self
Lee Seo-jin
Self
Jung Doo-hong
Self
Yang Hee-eun
Self
Park Jin-young
Self
Yoo Se-yoon
Self
Lee Yeon-bok
Self
Choi Min-soo
Self
Lee Soon-jae
Self
Gong Hyo-jin
Self
Kim Soo-mi
Self
Kim Byung-man
Self
Shin Ae-ra
Self
Yu Jun-sang
Self
Lee Duck-hwa
Self
Goh Doo-shim
Self
Lee Sun-hee
Self
BoA
Self
Youn Yuh-jung
Self
Choi Bool-am
Self
Seol Min-seok
Self
Lee Jae-si
Character not listed
Lee Jin-hyuk
[1-Day Disciple]
Sean
Self
Kim Min-kyoung
Self
Moon Se-yoon
Self
Yoo Min-sang
Self
Kim Joon-hyun
Self
Ki Hong Lee
Self
Chang Ki-ha
Self
Yoon So-hee
[Master]
Son Hyun-joo
[Hint Fairy]
Jung Jae-eun
[Special Appearance]