•
Bryn : Member of the former Dickids crew. She was featured in Episode 1 alongside Ato and Asol as 'Skilled Female Rapper'. However, she was eliminated in the one-minute rap round. •
Penomeco : Korean rapper signed under Million Market and member of Fanxychild crew with judges
Zico and
Dean. Eliminated during the 1-on-1 rap battle round against Asol. •
Kebee : Member of the Hip-Hop Duo Eluphant under
Brand New Music and former CEO of the defunct
Soul Company. Shockingly got eliminated during the one-minute rap round. •
Heesun Lee : Korean-American New York-based rapper who joined SMTM6 to find her biological parents in Korea and to introduce more of herself in the Korean Hip-Hop community and try embracing her own Korean heritage more. Eliminated during the 1-on-1 rap battle round against season champion Hangzoo. •
NO:EL : Member of Prima Music Group. Also known by his real name Jang Yong-joon, who dropped out on the first season of
High School Rapper due to prostitution and bullying controversies. Eliminated during the one-minute rap round. •
Kasper : Former member of
Play the Siren and former contestant for
Show Me the Money 4 and
Unpretty Rapstar 2. Eliminated during the Cypher/Team Choosing round after none of the producer teams picked her. •
Geegooin and Boi B : Two members of
Rhythm Power under
Amoeba Culture. Both rappers were contestants for SMTM4 and SMTM5 respectively. Unfortunately, they were eliminated in the preliminary auditions and 1-on-1 round (against Black Nine) respectively for this season. Hangzoo, the group's third and final member who made it to a SMTM team eventually won this season. •
Digiri : A first-generation Korean rapper who caused some controversies during and before the show aired (see Controversies section). Eliminated in the 1-on-1 rap battle round against P-Type. •
Truedy :
Unpretty Rapstar 2 champion currently signed under
Mnet. Eliminated during the Cypher/Team Choosing round after placing last in her Cypher group. •
Punchnello : Rapper currently signed under
YG Entertainment's sublabel HIGHGRND and a member of Club Eskimo crew with producer
Dean. Voluntarily eliminated himself after the 1-on-1 battle round against myunDo in order to take care of his sick mother. •
Sleepy : Member of rap duo
Untouchable under
TS Entertainment. Being known among contestants for his appearances on many variety shows, some have labeled him as a variety man and not a rapper. Eliminated during the Cypher/Team Choosing round after placing last in his Cypher group. •
Jin Doggae : Former 1st runner-up in SMTM1 and a participant in
SMTM5. Eliminated during the 1-on-1 rap battle against Hash Swan. •
Microdot : Previously participated in
SMTM4 as a member of Team Brand New. He is the younger brother of former
SMTM5 contestant and
Phantom member
Sanchez. Eliminated during the 1-on-1 rap battle round against Maniac. •
JJK : Veteran freestyle rapper and leader of the Angdreville Crew (ADV) with fellow contestant Olltii. Eliminated during the Cypher/Team Choosing round after none of the producer teams picked him. His decision to participate in the show initially stirred up controversy, since he belittled the program in the past, but later stated that the show became important to the Korean Hip-Hop scene. •
Ignito : Veteran rapper who is also known as "The Devil". Member of Vitality Crew. Eliminated during the 1-on-1 rap battle round after his close match-up with eventual 2nd runner-up Woo Won-jae. • '''
J'Kyun''' : Former member of
Lucky J. Previously participated in SMTM2 and 5. Eliminated during the one-minute rap round. •
1Kyne : Member of Electroboyz under
Brave Entertainment. Eliminated after placing last in the Cypher/Team Choosing round. •
BIGONE : Former member of
24K under his real name Kim Dae-il. He is currently signed to VMC, which also houses eventual 1st runner-up Nucksal. Eliminated during the Cypher/Team Choosing round after none of the producer teams picked him. ==Controversies==