This doesn't count groups who had more than one song on the series btw, just different groups/solos where they represented
4 Appearances
Jinsil (G.I, AGirls, Various, Blastar)
Mintty (Tiny-G, Solo, RGP, Collab with Highsoul)
3 Appearances
Ellie (Collab with Robin Hoon, Hotties, We Girls)
Haeun (Apple.b, 3YE, Triple 7)
Hwa Yeon (1PS, Shafla, Solo)
NC.A (Solo, Uni+G, Uni.t)
Serri (Dal*shabet, Uni+G, solo)
So Yumi (VNT, Kiss&Cry, solo)
Sojin (Nasty Nasty, 9muses, Red Queen)
Sori (Cocosori, RGP, Solo)
Suji (Red Queen, RGP, Uni.t)
Yuji (Apple.b, 3YE, Triple 7)
Yurim (Apple.b, 3YE, Triple 7)
2 appearances:
Ami (Nep, Wanna.b)
Anna (Vetty L, Maywish)
Ari (Tahiti, Red Queen)
Baekah (Neon Punch, XUM)
Bebe Yana (Evol, solo)
Bohye (Bella, Kiss&Cry)
Bohyung (Spica, Keembo)
Chaekyung (C.I.V.A, I.B.I)
Chai (GP Basic, Ye-A)
Chan (A.C.E, UNB)
Coco (Blady, Cocosori)
Daewon (MADTOWN, UNB)
DaHye (BESTie, Solo)
DALsooobin (Dal*Shabet, Solo)
Danbi (Bob Girls, LoveUs)
Daya (84LY, A.kor)
Dayeon (Neon Punch, XUM)
Dia (Kiss&Cry, solo)
Ella (Cherry Bullet, Pixy)
Euijin (A.cian, UNB)
Eun Yuri (Sida, Blah Blah)
Eunbyeol (Lip Bubble, Maka Maka)
Feeldog (BIGSTAR, UNB)
Gain (Solo, Collab with LC9)
Gowoon (Vividiva, Sha Sha)
Haena (Kiss&Cry, Matilda)
Haeyeon (Ye-A, Geegu)
Han Hyeri (I.B.I, Red Queen)
Hayoon (MyB, Bonus Baby)
Heedo (B.I.G, Triple 7)
HeeO (4ten, solo)
Huh Chanmi (Co-ed School, Solo)
Hwang In Sun (Smile.G, solo)
Hyerim (Limesoda, Aqua)
Hyeonju (Seeart, Aqua)
Hyewon (Co-ed School, F-ve Dolls)
Hyoyoung (Co-ed School, F-ve Dolls)
Hyunji (Peach Girl, Hashtag)
Hyungseo (Busters, Class:y)
I Sol (I-Ren, Six Bomb)
Iaan (Neon Punch, XUM)
J-Hoon (B.I.G, Triple 7)
J.Na (MOA, 4L)
Jaejun (C-Clown, Trei)
Janey (GP Basic, D-Unit)
Jayoung (MOA, 4L)
Jee Won (Uni+G, Cignature)
Jeon Yul (Stellar, Solo)
Jeongyeon (Rion Five, T.E.N)
Jihyun (Black Queen, A-Seed)
Jiwon (Spica, Uni.t)
Joori (Jevice, Fantamony)
Jun (U-Kiss, UNB)
Jungah (Hotties, We Girls)
Jungwoo (Co-ed School, SPEED)
Junyoung (INX, Noir)
Kang Min Hee (Miss $, solo)
Kevin (ZE:A, Nasty Nasty)
Kimi (Scarlet, Bulldok)
Kyungri (9muses, Nasty Nasty)
Lea (Skarf, Secret Number)
Lee Ae (Sida, Black Queen)
Merry (Walwari, Dia Girls)
Miel (Bay.B, Sixth Sense)
Migyo (Bob Girls, LoveUs)
Minjae (Rion Five, T.E.N)
MiSO (Girls Girls, Solo)
Monika (BADKIZ, Solo)
Moonhee (MyB, Bonus Baby)
Moos (MADTOWN, collab with Monika)
Nada (Wa$$up, Solo)
Nara (Asha, Solo)
Rami (D-unit, Five Run Strike)
Ria (Botopass, POA)
Rohyoon (Rion Five, T.E.N)
Rumi (Purplay, Unicorn)
Ryeowon (Blady, Prism)
SAAY (Evol, Solo)
Saetbyeol (GsA, Pixy)
SeeA (Piggy Dolls, Pink Fantasy)
Sehee (Swincle, Year 7 Class 1)
Seolah (ACE, H.U.B)
Seorin (Bay.B, Gavy NJ)
Seunggi (Limesoda, Aqua)
Sion (Lip Bubble, Saturday)
Sohee (C.I.VA, I.B.I)
Song Minkyung (The SeeYa, Solo)
Soohyun (Minimani, Solo)
Soyul (Hotties, S2)
Sua (Seeart, Aqua)
Sujin (HAM, BBde Girl)
Sungmin (Co-ed School, SPEED)
Taehee (84LY, A.kor)
Taewoo (Rion Five, T.E.N)
Tian (S.E.T, Lunarsolar)
Trinity (GP Basic, Collab with Spinel X)
Woohee (Dal*Shabet, Uni.t)
Yebin (DIA, Uni.t)
Yechan (Awesome Baby, Pink Fantasy)
Yehana (Alice White, We Girls)
Yeonjoo (P.O.P, lilli lilli)
Yeonjun (SpineL X, 2EYES)
Yeonkyung (F-ve Dolls, The SeeYa)
Yoonjo (Hellovenus, Uni.t)
Youngjoo (The SeeYa, RGP)
Yousung (Rion Five, T.E.N)
Yubeen (Camila, POA)
Yujeong (Laboum, Uni+G)
Yujin (D-unit, Shafla)
Yukika (RGP, Solo)
ZN (Laboum, Uni.t)
*SunA, Backjo, and Lee Ae were members of SIDA who re-debuted as Icia.
*All the Elris members re-debuted as Alice
