Choi Seung-hoon

as Jo Yong-pil (teenage)

as Yoon Sa-wol (young)

as Self - Contestant

as Na Il-deung (young)

as Baek Min-jae (young)

as Hwang Jung-tae

as Manager's (voice)

as Choi Woo-Joon

as Joon-hyung

as Mok Jin-woo (child)

as Ahn Min-hyuk (young)

as Son Ah-ram

as Kang Jae-hyeok (child)

as Kim Je-ha (young)

as Kim Jang-soo (child)