In the spring of 2013, Joo Won starred in the MBC drama "7th Grade Civil Servant", based on the action-romance movie "My Girlfriend Is an Agent".
In the spring of 2013, Joo Won starred in the MBC television series "7th Grade Civil Servant", alongside Choi Kang-hee who is 10 years his senior. The drama is based on the action-romance movie "My Girlfriend Is an Agent".