The much-beloved former castmate of SBS's 'Running Man', actor Song Joong Ki, might be making a brief return to the show as a guest!  On October 4th, various fan accounts made their way on social network services (SNS) like Twitter and Me2day, citing that Song Joong Ki and actress Kim Sun Ah were spotted filming for the show. According to these accounts, the two were filming near the Eunhaeng-dong area of Daejeon. Fans wrote, "The 'Running Man' team is currently filming near my company", and "They were doing jump ropes!" This will be Song Joong Ki's first return to the show since his voluntary departure five months ago. The two are said to be on the show as guests promoting their respective dramas. Netizens commented, "I'm looking forward to Song Joong Ki", "Can't wait for this episode", and "I wonder how he'll reunite with the 'Running Man' members". Source + Photos: E-Daily, Everyday Economy via Naver