Stage name: One Junn (원준)
Real name: Jo Weon Joon (조원준)
Birth date: November 22, 1988
Position: Leader, Main Vocalist
Blood type: AB
Hobbies: Composition, arrangement
Favorite artists: Kim Gun Mo, James Brown, Boyz II Men
Twitter Account: @BoysRepublic_OJ
- He was a former member of the South Korean boy band, TOUCH, managed by YYJ Entertainment and had also received training under Cube Entertainment.
- Sunwoo told Star News during his interview on the 22nd, "I changed my name about a month ago... My parents are the type to frequently go get their fortune told, and they suggested that I change my name." He change his name Choi Dabin to Choi Sunwoo.
Stage name: Sungjun (성준 )
Real name: Park Seong Joon (박성준)
Birth date: December 17, 1992
Position: Lead Rapper, Dancer
Blood type: AB
Hobbies: Street dancing, writing rap
Interests: "Looking at the moon on the roof of my home"
Favorite artists: Poppin' DS, Doobu, Michael Jackson, Chris Brown
Instagram Account: sungjun1217
- He was a former JYP Entertainment trainee and Suwoong was previously under Big Hits Entertainment.
Stage name: Minsu (민수)
Real name: Kim Min Su (김민수)
Birth date: April 15, 1993
Position: Main Rapper, Lead Dancer
Blood type: O
Hobbies: Writing rap, creating choreographies, skateboarding
Favorite artists: J.Cole, T.I.
Twitter Account: @BoysRepublic_MS
Instagram Account: ejrtjsdl12
Stage name: Suwoong (수웅)
Real name: Lee Su Woong (이수웅)
Birth date: January 20, 1995
Position: Lead Vocalist, Maknae
Blood type: B
Hobbies: Playing soccer
Interests: Working out
Favorite artists: Park Hyo Shin, Chris Brown, Bruno Mars
Instagram Account: suwoong_95