Su You-peng (born 11 September 1973), also known as Alec Su, is a Taiwanese actor, pop singer, television producer, and film director.
Su became a huge teen idol in 1988 as a member of the boy band Xiao Hu Dui. He was known as the “Obedient Tiger” (乖乖虎) until the band broke up in 1995.
The 1998-1999 mega-hit TV series My Fair Princess marked a turning point in Su’s career. Since then he has had a successful career in acting, starring in highly-popular dramas such as The Legendary Siblings (1999), Romance in the Rain (2001), and The Heaven Sword and Dragon Saber (2003). Su has won awards from Hundred Flowers Awards and Macau International Movie Festival for the films The Message (2009) and The Love Song of Kang Ding (2010) respectively.
In 2013 he produced the TV series Destiny by Love. In 2015 he directed the film The Left Ear.