Nama : Choi Si Won
Nama Panggilan: Simba
Profesi : Penyanyi, aktor, model
Lahir : 1 Februari 1987
Tinggi : 183cm
Berat : 67kg
Gol. Darah : B
Agama : Kristen Protestan
Agency : SM Entertainment
Penddikan : Hyun Dea High School, Inha University (Physical Education Arts Department)
Bahasa : Korean, Mandarin, English
Hobby : Taekwondo, main drum, main komputer
Casting : Starlight Casting System (2003)
KPOP Group : Super Junior, Super Junior M
Drama TV:
Legend of Hyang Dan (MBC, 2007)
Spring Waltz (KBS, 2006)
18 vs. 29 (KBS, 2005)
Precious Family (KBS2, 2005)
Parent's Approval (KBS)
Charnel Boy (KBS)
Film:
Attack on The Pin Up Boys (2007)
Battle of Wits (2006)
Charmel Boys (2005)
Iklan:
Elite Uniforms
Seoul Milk
Black Jacket
12 Plus
