Birthdate: February 10, 1987
Height: 182 cm
Weight: 63 kg
Blood Type: B
Hobbies & Specialties: sleeping, watching movies
Education: Hyun Dae High School, Inha University (Physical Education Arts Department)

Choi Shi Won was discovered by the Starlight Casting System in 2003 and debuted as a member of Super Junior in 2005. However, he was first officially seen in a music video for fellow label-mate Dana when she was still a solo singer. He quickly emerged as one of the highly visible members, seen on many variety shows, although he has not been of the main vocalists.

Although his current focus is the group, Choi has also continued his acting career. Shortly after Super Junior’s debut, he joined the cast for the Korean drama mini-series Spring Waltz. He has also been part of the epic film Battle of Wits with Hong Kong actor Andy Lau. Battle of Wits is a big budget film with joint collaboration from South Korea, China, and Japan, and was released in China and Hong Kong on November 23, 2006; it is due for release in Korea sometime in 2007. Choi has promoted the movie in China with a short tour of four cities at the end of November.

Choi is also a drummer, having performed with the band The TRAX in September 2006 on SBS’s music show 인기가요 (Popular Songs), due to the fact that their drummer had left the band. Both The TRAX and Super Junior are part of SM Entertainment.

Choi Si Won has recently won the “Best Super Model Of the Year”. Due to this winning, his popularity has risen up nearly three times. He has also won the ” Sexiest guy in Korea” AWARD.