Jang Su Won (장수원) is a South Korean singer, dancer, actor and member of the first generation idol boy groups SECHSKIES (젝스키스) and J-Walk under YG Entertainment.
After SECHSKIES' sudden disbandment in 2000, he and fellow member Jaeduck went on to re-debut in 2002 as a duo, J-Walk.
In September of 2013, Suwon made his acting debut in the idol edition of popular drama "Love and War" but was criticised for his poor acting, which has earnt him the nickname of "robot acting". In 2014, people had stopped criticising him due to his nice attitude and good performances later and he has even regained fame with his imitations of his poor acting at variety shows, which gained him many CF opportunities. Suwon had also starred in the drama "Misaengmool", which was a parody version of the popular drama "Misaeng" as the main character Jang GeuRae. However, people were upset with his improved acting skills, and even missed his "robot-acting".
After a few years of promotion with J-Walk and focusing on acting and variety shows, Suwon had reunited with SECHSKIES, having a reunion concert through the variety show Infinite Challenge. The group had later signed a contract with YG Entertainment to start promotions again. Suwon had later signed a solo contract with YG Entertainment on November 6, 2017.