U-Know

Real name : Jung YunHo
Stage name : U-Know Yunho
Dob : 6 February 1986, Gwangju
Weight : 66 kg
Height : 186 cm
Hobbies : listen music, reading, sport, arrangment music

Hero

Real name : Kim Jae Joong
Stage name : Hero Jaejoong
Dob : 17 January 1986, Chungnam
Weight : 63 cm
Height : 80cm
Hobbies : play games in komputer, listen music, arrangment music, cook

Micky 

Real name : Park Yoo Chun
Stage name : Micky YooChun
Dob : 4 Juny 1986, Seoul
Weight : 60
Height : 182 cm
Hobbies : arrangment music/lyrics/rap, listen music

Max

Real name : Shim Changmin
Stage name : Choikang Changmin / Max
Dob : 18 February 1988, Seoul
Weight : 61 kg
Height : 190 cm
Hobbies : sing, eat, play music

Xiah

Real name : Kim Jun Su
Stage name : Xiah Junsu
Dob : 15 December 1986, Gyeonggi 
Hobbies : practice sing, play footbal, play piano