Song Jae-ho

as Professor Choi

as King

as Sang-beom

as President Hwang

as Yoon Du-ho

as Dae Tong-ryeong

as Mr. Yoon

as Yoo Tae-jin

as President

as Kwak Han-soo

as President Lee

as Jang Goon-bong

as Jung Byung Do

as Vice-Principal Kim Young Ho

as Oh Joong-ho

as Choi's Uncle

as Min Chi-sung

as No-seung

as Priest Kim

as Cha Hyeon-min

as Kang Oh-Joon

as Suh Nak-Chun

as President Park Chung-hee

as Ahn Jae-hyo

as Department Head Song

as Lee Pil-guk

as Hee-cheol's Father

as Jung Seung-Beom

as Ko Jin-rae

as Dong-mi's Father

as 한진우

as Sergeant Shin Dong-chul

as Song Kyung-man

as Lee Ji-heon

as Ahn Sang-man

as Yoon Yong-guk

as Su-cheol

as Min Young-hwan

as Pastor

as Young Woong Choi

as Chang-soo

as Boy (ep. 1)