소년24

Oh Yeon-seo

Self — MC

신혜성

Self — Judge / Director

이민우

Self — Judge / Director

최찬이

오진석

Jeon Bong-jin

Self — Judge / Vocal Master

Ha Hwi-dong

Self — Judge / Dance Master

BILL STAX

Self — Judge / Rap Master

Yoo Jae-hwan

Self — Judge / Vocal Master

Basick

Self — Judge / Dance Master

Choi Young-joon

Self — Judge / Rap Master

Tak Jin-kyu

Self — Contestant