Cast Credits Bride of the Water God (2017) Starring as Mu Ra The Legend of the Blue Sea (2016) Guest starring as Flight Attendant Min Ji Episode 1x01: Episode 1 (Nov 16, 2016) f(x)=1cm (2015) Starring as Krystal Jung My Lovely Girl (2014) Starring as Yoon Se Na Jessica & Krystal (2014) Starring as Krystal Jung The Heirs (2013) Starring as Lee Bo Na Amazing f(x) (2013) Starring as Krystal Jung High Kick! The Revenge of the Short Legged (2011) Starring as Ahn Soo Jung