Jeong Jae-seong

as Kim

as Pyo Dong-ho

as Kim Byeong-chan

as Kim Min-sub

as Representative Goo

as Jo Se-hyeon

as Pharm

as Briefing

as Reporter

as Container Oya

as Na Byeong-mo • 12 eps

as Choi Chang-soo • 2 eps

as Lee Bong-seok • 9 eps

as vice-principal (Yu-seong Tech) • 10 eps

as Baek Cheol-gyu • 16 eps

as Han Kyung-rok • 16 eps

as Seon-ho's father • 1 eps

as Yuk Si-gyeong • 16 eps

as Park Yoongab • 16 eps

as Marshal Kim • 12 eps

as No Hak-Su • 20 eps

as Deok Chul's father • 2 eps

as Kong Ji-cheol • 16 eps

as Chief neurosurgeon • 12 eps

as Kim In-Joo • 16 eps

as Kang Mong-koo • 16 eps

as Kwon Suk • 16 eps

as Bae Sang-bok • 16 eps

as [Oh Sol’s boss] • 1 eps

as Lee Woo-taek • 32 eps

as Yoon Sang-tae • 16 eps