Cast
Seo Eun-kwangDJ (Episode 1 - 6)Seo Eun-kwang was 27 in Idol Radio - Season 1 - Summer Friend (Episode 3).
Birthday: Thu, Nov 22 1990
Jung Il-hoonDJ (Episode 7 - 363)Jung Il-hoon was 23 in Idol Radio - Season 1 - Summer Friend (Episode 3).
Birthday: Tue, Oct 04 1994
Choi Young-jaeDJ (Episode 594 - 714)Choi Young-jae was 21 in Idol Radio - Season 1 - Summer Friend (Episode 3).
Birthday: Tue, Sep 17 1996
Young KDJ (Episode 594 - 714)Young K was 24 in Idol Radio - Season 1 - Summer Friend (Episode 3).
Birthday: Sun, Dec 19 1993