Real Name: Kim Heechul (김희철/金 希 澈)
Position: Vocalist, Sub Rapper, Visual
Nickname(s): Heenim (희님), Cinderella (신데렐라), Flower (꽃), Kim Pink (김분홍), Kim Moodswing (김기복), Kim Cherry (from Youngstreet), Snake (from the Zodiac), Heerobbong (part of the Bbong brothers with Donghae and U-Know Yunho), Heebongie Hyung (Yesung’s nickname for Heechul)
Date of Birth: July 10, 1983
Place of Birth: Hoengseong County, Kangwondo - Wonju
Height: 179 cm/5′ 10.5″ in (stated in his 100Q/100A from August 26, 2007 that his height is actually 178 cm/5′ 10.1″)
Weight: 60 kg/132 lb
Blood Type: AB
Siblings: older sister Kim Heejin (1982)
Pets: Heebum (Russian Blue cat) since 11/11/06, Champagne (Siamese cat) since 7/26/08; used to have Yamchae (Russian Blue cat) given to him by fans from 7/13/05 to 11/3/05, but he ran away while Heechul was away for a few days filming.
Specialty/Hobby: Writing poems, Writing fairy tales, Computer games
Education: Sangji University ; reportedly graduated in 2008.
Kim was discovered at Starlight Casting System October 2002 where he auditioned with his friends. Initially, he was placed in a four-member project group called, "Four Seasons". This group included members Jaejoong, Yunho, and Kangin.
They never debuted as Jaejoong and Yunho joined boy band TVXQ, who debuted in December 2003. Kim and Kangin joined ten other trainees and formed the group Super Junior 05, being the first generation of the rotational boy band Super Junior.
Kim Heechul officially debut as part of 12-member project group Super Junior 05 on 6 November 2005 on SBS's music programme Popular Songs, performing their first single, "TWINS (Knock Out)". Their debut album SuperJunior05 (Twins) was released a month later on 5 December 2005 and debuted at #3 on the monthly MIAK K-pop album charts. In March 2006, SM Entertainment began to recruit new members for the next Super Junior generation. However, plans changed and the company declared a halt in forming future Super Junior generations. Following the addition of thirteenth member Kyuhyun, the group dropped the suffix "05" and became officially credited as Super Junior.