Main Host
- Kwon BoA[Judge]Main Host
- Yang Hyun Suk[Judge]Main Host
- Park Jin Young[Judge]Main Host
- Yoon Do Hyun[Host and narrator]Main Host
- Boom[Live host]Main Host
Regular Member
- Jamie[Contestant]Regular Member
- Lee Hi[Contestant]Regular Member
- Baek A Yeon[Contestant]Regular Member
- Lee Seung Hoon[Contestant]Regular Member
- Jae Park[Contestant]Regular Member
- Im Da Young[Contestant]Regular Member
- Kim Woo Sung[Contestant]Regular Member
- Millennium[Contestant]Regular Member
- BM[Contestant]Regular Member
- Koo Jun Hoe[Contestant]Regular Member
- Chae In[Contestant]Regular Member
- Kim Byeong Kwan[Contestant]Regular Member
- Lee Michelle[Contestant]Regular Member
Guest
- Nichkhun[Cameo] (Ep. 1)Guest
- Kim Hyo Yeon[Cameo] (Ep. 1)Guest
- Lee Jun Ho(Ep. 1)Guest
- Key[Spectator] (Ep. 1-2)Guest
- Choi Min Ho[Spectator] (Ep. 1-2)Guest
- Im Yoon Ah[Cameo] (Ep. 1, 11)Guest
- Seo Hyun[Cameo] (Ep. 1, 11)Guest
- Bae Suzy[Spectator] (Ep. 1, 2, 16) [Performer] (Ep. 21)Guest
- Fei[Spectator] (Ep. 1-2, 16) [Performer] (Ep. 21)Guest
- Akiyama Yoshihiro[Cameo] (Ep. 2)Guest
- Kim Jong Hyun[Spectator] (Ep. 2)Guest
- Se7en[Judge] (Ep. 4)Guest
- Kim Tae Woo[Judge] (Ep. 4)Guest
- Kang Ta[Judge] (Ep. 4)Guest
- Lee Dong Hae[Judge] (Ep. 4)Guest
- Jang Jin Young[Judge / Coach] (Ep. 4, 13, 18, 21)Guest
- PSY[Judge] (Ep. 4, 19)Guest
- Ahn So Hee(Ep. 6)Guest
- Kim Yu Bin(Ep. 6, 17-18)Guest
- HA:TFELT(Ep. 6, 17-18)Guest
- Woo Hye Rim(Ep. 6, 18)Guest
- Sun Ye(Ep. 6, 18)Guest
- Kang Dae Sung[Evaluator] (Ep. 9)Guest
- Kim Jung Mo[Coach] (Ep. 9)Guest
- Taeyang[Evaluator] (Ep. 9, 11)Guest
- Park Bom[Evaluator] (Ep. 9, 19, 21)Guest
- CL[Evaluator] (Ep. 9, 21)Guest
- Sunny[Coach] (Ep. 11)Guest
- Minzy[Evaluator] (Ep. 11, 21)Guest
- Kim Tae Yeon[Coach] (Ep. 11) | [Performer] (Ep. 21)Guest
- IU(Ep. 16)Guest
- Meng Jia[Spectator] (Ep. 16) [Performer] (Ep. 21)Guest
- Min[Spectator] (Ep. 16) [Performer] (Ep. 21)Guest
- Ha Ji Won[Cameo] (Ep. 17)Guest
- Im Seul Ong[Spectator] (Ep. 17)Guest
- Jo Kwon[Spectator] (Ep. 17)Guest
- Chang Min[Spectator] (Ep. 17)Guest
- Jung Jin Woon[Spectator] (Ep. 17)Guest
- Teddy Park[Cameo] (Ep. 18)Guest
- Goo Ha Ra[Spectator] (Ep. 19)Guest
- Nicole Jung[Spectator] (Ep. 19)Guest
- San E[Coach] (Ep. 20)Guest
- T.O.P[Coach] (Ep. 20) [Performer] (Ep. 21)Guest
- Kang Gary[Cameo] (Ep. 21)Guest
- Jung Gyu Woon[Cameo] (Ep. 21)Guest
- Kim Bum Soo[Cameo] (Ep. 21)Guest
- Lee Dong Wook[Cameo] (Ep. 21)Guest
- Jo Sung Mo[Cameo] (Ep. 21)Guest
- Han Sang Jin[Cameo] (Ep. 21)Guest
- Lyn[Cameo] (Ep. 21)Guest
- Tiffany Young[Performer] (Ep. 21)Guest
- G-Dragon[Performer] (Ep. 21)Guest
- Gummy[Spectator] (Ep. 21)Guest
- Sandara Park[Spectator] (Ep. 21)Guest
- Jung Joon Ha[Cameo] (Ep. 22)Guest
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