Lee Jun-youngKwon Ryok / Theme Song Performance Park Ji-yeonLa Ri-ma / Theme Song Performance Jung Zi-soLee Ma-ha / Theme Song Performance YunhoLee Yu-jin / Theme Song Performance Lim Na-youngShim Hyun-ji / Theme Song Performance Min-seoYu Ri-ah / Theme Song Performance Hwi YoungLee Hyun / Theme Song Performance JonghoYoon Hyuk / Theme Song Performance Lee Soo-woongKim Hyun-oh / Theme Song Performance SanSon Min-soo / Theme Song Performance SeonghwaNam Se-young / Theme Song Performance Ahn Jung-hunHan Jae-woo / Theme Song Performance Park Yu-riBang Do-jin / Theme Song Performance Yeon Si-woo'Annie' Jang Yoo-ri Jung Yoo-naShax Fan Club Member Shim Eun-jinByun Jung-hee Kim So-heeJoo Min Sung [Café H part-timer] Cho Jung-chiHa Seok / Ammonites [Composer] Kim Jae-ilMusic Holic Entertainment CEO Yoon Man-dalSitcom Director Lee Se-WookIdols on Air Director Song In-seopAssistant Director Park Jung-eonMML Festival Committee Chairwoman Yoon Jeong-seopMovie Filming Staff Jang Won-youngCEO Kim OMEGA Entertainment CEO Sung HyukBest New Actor Nominee #1 Kim Dong-yeonBest New Actor Nominee #2 Park Kyeong-rimCurrent Affairs and People Host Yun Yoo-sunLee Ma Ha's Mother Jeon Go-eunIdols on Air Staff Park Jeong-minPark Jin Man's Friend Shim Hye-rimSung Ah-young Shim Yoo-SeungMusic Arena Director Kim Yoon-seolTea Party Fan Bae Kyung MinConvenience Store Cashier Lee Ji-youngCellphone Store Employee Jeon Jun-wooVariety Show Staff Kim Seo-yeonHyun Oh's Ex-girlfriend Cho Jung-hunCart Bar Troublemaker Choi Sol-heeMML Festival Committee Member Ma Jeong-pilMML Festival Committee Member Kang Hak-sooMML Festival Producer Jung Zi-soLee Ma-ha / Theme Song Performance YunhoLee Yu-jin / Theme Song Performance Hwi YoungLee Hyun / Theme Song Performance Lee Jun-youngKwon Ryok / Theme Song Performance Min-seoYu Ri-ah / Theme Song Performance Lee Soo-woongKim Hyun-oh / Theme Song Performance JonghoYoon Hyuk / Theme Song Performance Park Ji-yeonLa Ri-ma / Theme Song Performance Lim Na-youngShim Hyun-ji / Theme Song Performance Park Yu-riBang Do-jin / Theme Song Performance SeonghwaNam Se-young / Theme Song Performance Ahn Jung-hunHan Jae-woo / Theme Song Performance SanSon Min-soo / Theme Song Performance 
