Siwon 'Suju'

Memiliki wajah yang polos dan selalu menghiasi wajahnya dengan senyuman yang ramah. Sering menjadi wakil dari grupnya. Walaupun jadwalnya padat, dia tetap dapat mengatur agar semuanya dapat berjalan lancer dan baik. Dia selalu mendahulukan semua kepentingan grup. Di dunia akting dia selalu memperhatikan orang-orang disekelilingnya dan mau bekerjasama dengan siapa saja.

Member Suju yang satu ini terkenal lewat perannya dalam film aksi laga historis A Battle of Wits sebagai pangeran muda Liang Shi. Siwon juga merupakan satu dari empat artis Korea pertama yang muncul di perangko pos Cina.

Nama asli               : Choi Siwon
Nama panggung     : Siwon (official)
panggilan               : horse, Simba
tempat, tanggal lahir : Seoul, 10 Februari 1986
tinggi badan           : 183cm
Weight                    : 65 kg
Blood Type             : B

Religion                  : Christian

hobby                      : nyanyi, dance, nonton film, Chinese/Mandarin (language), main drum, taekwondo

Asal                         : Seoul, Korea Selatan

Aliran Musik           : K-pop, Mandopop

Profesi                    : Aktor, Penyanyi, Penari, Model

Alat Musik              : Piano, Drum

Jenis Suara             : Bariton

Grup                       : Super Junior, Super Junior-M

Website                  : onlysiwon.smtown.com

Nicknamed "Simba" by Kim Heechul. Siwon learnt Chinese to act in a drama; he talks to Han Kyung in Chinese, whereas the latter replies in Korean to practice their skills. Choi 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
Siwon– Dia sangat tampan. Meskipun kau melihat bagian – bagian tubuhnya secara terpisah, tangannya, kakinya, tapi tetap saya kesan “handsome” itu melekat pada dirinya. Beautiful! Mungkin tidak ada yang bisa mengalahkan pesonanya di layar Big screen. Selain itu juga, orangnya sangat sederhana dan tidak macam – macam.