Lee Ji-ah
Shim Soo-ryun (13 eps)
Kim So-yeon
Cheon Seo-jin (13 eps)
Eugene
Oh Yoon-hee (13 eps)
Uhm Ki-joon
Joo Dan-tae (13 eps)
Shin Eun-kyung
Kang Ma-ri (13 eps)
Bong Tae-gyu
Lee Gyu-jin (13 eps)
Yoon Jong-hoon
Ha Yoon-chul (13 eps)
Park Eun-seok
Logan Lee (13 eps)
Yoon Joo-hee
Go Sang-ah (13 eps)
Ha Do-kwon
Ma Doo-gi (13 eps)
Ahn Yeon-hong
Jin Boon-hong (13 eps)
Kim Hyun-soo
Bae Ro-na (13 eps)
Jin Ji-hee
Yoo Je-ni (13 eps)
Kim Young-dae
Joo Seok-hoon (13 eps)
Han Ji-hyun
Joo Seok-kyung (13 eps)
Choi Ye-bin
Ha Eun-byeol (13 eps)
Lee Tae-vin
Lee Min-hyeok (13 eps)
Kim Dong-Kyu
Secretary Jo (13 eps)
Kim Do-hyeon
Secretary Do (13 eps)
Lee Sang-woo
Reporter Son Hyung-jin (2 eps)
Yu Jun-sang
Jung Doo-man (2 eps)
Bret Allan Lindquist
JohnBIO Conference Attendee (1 eps)