Cast appeared in "Koinonia" music video (36 people)
Ahn Sung-ki (John), Kim Hee-ae (Maria), Kim Tae-hee (Verdi), Kim Ha-neul (Cecilia), Kim Min-jung (Juliana), Kim Kang-woo (Vincentius), Lee Yoon-ji (Maria), Kim Woo-bin (Benedictus), Park Jin-ju, Yu Hae-jung, Hong Dae-sung, Jeong Da-wum, Cha Jeong-min, Yang Dong-tak, Shin Ki-won, Lee Hyung-hun, Bada (Bibiana), Yoon Geon (Marco), Kim Jin-ho (Stephanos), a member of SG Wannabe, Song Wu-jin (Peter), a member of Sweet Sorrow, Sung Jin-hwan (Raphael), Sunwoo Jeong-A, Jung Lip, Seo Jae-hyung, Park Ji-young, Park Ji-yeon, Ahn Da-young, Kim Sung-hyun, KBS Announcer Hwang Jung-min (Agnes), Choi Yu-ra (Anna), Rhu Shi-hyun (Teresa), Lee Dong-wu (Marco), Hong Jin-kyung (Bibiana), Ballerina Kim Ju-won (Hildegard), Choreographer Yoo Hwe-wung, short track speed skater Park Seung-hi (Lydia)