Riven

Jang Keun-suk

as Self — MC

Shin Yoo-mi

as Self — Judge

Choi Hyo-Jin

as Self — Judge

Kim Tae-woo

as Self — Judge

Park Gyu-ri

as Self — Judge

Nicole Jung

as Self — Judge

Lee Seung-hyun

as Self — Contestant (AIMERS)

Choi Eun-jun

as Self — Contestant (AIMERS)

Kim Do-ryun

as Self — Contestant (AIMERS)

Kim Yo-el

as Self — Contestant (AIMERS)

Park Seung-hwan

as Self — Contestant (AIMERS)

Hwang Woo-young

as Self — Contestant (AIMERS)

Lim Tae-geon

as Self — Contestant (BE:MAX)

Kang Seok-kyu

as Self — Contestant (BE:MAX)

Kim Do-hyun

as Self — Contestant (BE:MAX)

Kim Soo-hyun

as Self — Contestant (BE:MAX)

Seo Seong-wook

as Self — Contestant (BE:MAX)

Kim Ji-hun

as Self — Contestant (BXB)

Kim Hyun-woo

as Self — Contestant (BXB)

Yoo Si-woo

as Self — Contestant (BXB)

Kim Kang-min

as Self — Contestant (BXB)

E-Chan

as Self — Contestant (DKB)

D1

as Self — Contestant (DKB)

GK

as Self — Contestant (DKB)

Yang Hee-chan

as Self — Contestant (DKB)

Hwang Jun-seo

as Self — Contestant (DKB)

Amanuma Yuku

as Self — Contestant (DKB)

Han Harry-June

as Self — Contestant (DKB)

Lune

as Self — Contestant (DKB)

Teo

as Self — Contestant (DKB)