1TYM - Official Site
Stage Name: Teddy Park
Korean Name: Park Hong Jun (박홍준)
DOB: September 14, 1978
Role: Leader, Lead Rapper

Stage Name: Danny
Korean Name: Im Tae Bin (임태빈)
DOB: May 6, 1980
Role: Lead Vocalist

Stage Name: Jin Hwan
Korean Name: Oh Jin Hwan (오진환)
DOB: July 6, 1978
Role: Choreographer & Rapper

Stage Name: Baek Kyoung
Korean Name: Song Baek Kyoung (송백경)
DOB: April 12, 1979
Role: Composer & Vocalist

45RPM - Official Site (YG Underground)
Stage Name: Smash
Korean Name: Lee Hyun Bae (이현배)
DOB:
Role: Leader

Stage Name: GR
Korean Name: Choi Kyung Wook (최경욱)
DOB:
Role:

Stage Name: J-Kwondo
Korean Name: Park Jae Jin (박재진)
DOB:
Role:

Big Bang - Official Site ll Daum ll JP
Stage Name: G-dragon
Korean Name: Kwon Ji Yong (권지용)
DOB: August 18, 1988
Role: Leader, Lead Rapper

Stage Name: Tae Yang / Sol
Korean Name: Dong Young Bae (동영배)
DOB: May 18, 1988
Role: Lead Vocalist

Stage Name: TOP
Korean Name: Choi Seung Hyun (최승현)
DOB: November 4, 1987
Role: Rapper

Stage Name: Dae Sung / D-Lite
Korean Name: Kang Dae Sung (강대성)
DOB: April 26, 1989
Role: Vocalist

Stage Name: Seung Ri / V.I
Korean Name: Lee Seung Hyun (이승현)
DOB: December 12, 1990
Role: Vocalist

Gummy - Official Site
Stage Name: Gummy
Korean Name: Park Ji Yeon (박지연)
DOB: April 8, 1981

Jinusean - Official Site
Stage Name: Jinu
Korean Name: Kim Jin Woo (김진우)
DOB: October 23, 1973
Role:

Stage Name: Sean
Korean Name: Noh Seung Hwan (노승환)
DOB: October 10, 1973
Role:

Kim Ji-Eun - Official Site
Stage Name: Jieun
Korean Name: Kim Ji Eun (김지은)
DOB: August 8, 1980

Masta Wu - Official Site
Stage Name: Masta Wu
Korean Name: Woo Jin Won (우진원)
DOB: October 25, 1978

Moogadang - Official Site
Stage Name: Baek Kyoung
Korean Name: Song Baek Kyoung (1TYM) (송백경)
DOB: April 12, 1979
Role:

Stage Name: Eunjoo
Korean Name: Lee Eun Joo (Swi.T) (이은주)
DOB: March 9, 1981
Role:

Stage Name: Pryhme
Korean Name: Jung Joon Hyung (정준형)
DOB: October 20, 1979
Role:

Stage Name: Woogeun
Korean Name: Kim Woo Geun (Bounce) (김우근)
DOB: April 27, 1982
Role:

Perry - Official Site
Stage Name: Perry
Full Name: Perry Thomas Borja
DOB: December 11, 1971

Se7en - Official Site ll MySpace ll Daum ll Cafe
Stage Name: Se7en
Korean Name: Choi Dong Wook (최동욱)
DOB: November 9, 1984

Stony Skunk - Official Site
Stage Name: S-Kush
Korean Name: Kim Byung Hoon (김병훈)
DOB: July 28
Role:

Stage Name: Skull
Korean Name: Jo Sung Jin (조성진)
DOB: November 2
Role:

Tae Yang - Official Site
Stage Name: Tae Yang / Sol
Korean Name: Dong Young Bae (동영배)
DOB: May 18, 1988

Uhm Jung Hwa - Official Site
Stage Name: Uhm Jung Hwa
Korean Name: Uhm Jung Hwa (엄정화)
DOB: August 17, 1971

YG - Official Site
Stage Name: Yanggoon
Korean Name: Yang Hyun Seuk (양현석)
DOB: December 2, 1970

YG Family – Official Site ll YG Bounce ll Audition (not working) ll YGeshop ll Youtube

Thanks to Official 1TYM & BigBang threads @ soompi & Wiki