Guest Stars Lee El as Samshin Granny Park Kyung Hye as Ghost that follows Eun Tak Choi Woong as Junior Grim Reaper Kim So Ra as Lee Jung Hwa Yum Hye Ran as Ji Yun Sook Kim So Hyun as Younger Kim Sun Go Bo Kyul as Class President Kim Min Jae as Younger Wang Yeo Jung Young Ki as Park Kyung Shik Choi Ri as Park Kyung Mi Kim Byung Chul as Park Joong Won Kim Min Young as Soo Jin Han Seo Jin as Child Eun Tak Kim Nan Hee as Eun Tak's Homeroom Teacher Yoon Kyung Ho as Shin's Loyal Subordinate Lee Kyu Hyung as Lee Jung Hwa's Husband
