Main Host
- Kim Bum Soo Main Host
- Lee Teuk Main Host
- Yoo Se Yoon Main Host
Regular Member
- Jang Do Yeon[Tone-deaf detective]Regular Member
- Joon Park[Tone-deaf detective]Regular Member
- Lee Sang Min[Tone-deaf detective]Regular Member
- Han Hee Jun[Tone-deaf detective]Regular Member
- Ben[Tone-deaf detective] (Ep. 9-12)Regular Member
Guest
- Park Jin Young(Ep. 1)Guest
- Park Jin Young[Tone-deaf detective] (Ep. 1)Guest
- Choi Min Soo(Ep. 2)Guest
- Jung So Ri[Contestant] (Ep. 2)Guest
- Kim Yu Bin(Ep. 3)Guest
- HA:TFELT(Ep. 3)Guest
- Sunmi(Ep. 3)Guest
- Kim Yoon Ah(Ep. 4)Guest
- Park Gun Woo[Contestant] (Ep. 4)Guest
- Han Seung Won[Tone-deaf detective] (Ep. 4)Guest
- Jung Joon Young(Ep. 5)Guest
- Kim Jung Wook[Contestant] (Ep. 5)Guest
- Lee Sun Bin[Contestant] (Ep. 5)Guest
- DinDin[Tone-deaf detective] (Ep. 5)Guest
- Lee Tae Il[Tone-deaf detective] (Ep. 5)Guest
- Park Kyung[Tone-deaf detective] (Ep. 5)Guest
- Jessi(Ep. 6)Guest
- Lee Sae On[Contestant] (Ep. 6)Guest
- Kim Jun Su[Contestant] (Ep. 6)Guest
- Lee Yoon Sang(Ep. 7)Guest
- LEENU[Contestant] (Ep. 7)Guest
- Kim Ji Min[Tone-deaf detective] (Ep. 7, 10)Guest
- John Park(Ep. 8)Guest
- Kim So Hee[Tone-deaf detective] (Ep. 8, 10-11)Guest
- Nichkhun(Ep. 9)Guest
- Jun. K(Ep. 9)Guest
- Jang Woo Young(Ep. 9)Guest
- Kim Tae Woo(Ep. 10)Guest
- Son Ho Young(Ep. 10)Guest
- Jeon So Mi(Ep. 11)Guest
- Kim Do Yeon(Ep. 11)Guest
- Chung Ha(Ep. 11)Guest
- Jung Chae Yeon(Ep. 11)Guest
- Zhou Jie Qiong(Ep. 11)Guest
- Kim So Hye(Ep. 11)Guest
- Choi Yoo Jung(Ep. 11)Guest
- Im Na Young(Ep. 11)Guest
- Yoon Chae Kyung[Tone-deaf detective] (Ep. 11)Guest
- Kang Min Kyung(Ep. 12)Guest
- Lee Hae Ri(Ep. 12)Guest
- Kangnam[Tone-deaf detective] (Ep. 12)Guest
- Koonta(Ep. 12)Guest
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