Guest Stars Lee Joon Young as Sung Hoon Cha Soo Yun as Choi Soo Jin Lee Jae Hee as Pa Rang's Landlady Lee Ba Da as Junior #2 Lee Jae Moon as Junior #1 Hwang Woo Sang as Security Guard Lee Dong Yong as Pharmacist Choi Dae Suk as Detective Jang Jin Ah as Theater Department Assistant Kim Hyun as Seul Gi's Mother Yoon Soon Shim as Pa Rang's Mother Nam Myung Ryul as Android Lee Young Suk as Pa Rang's Father Kim Seung Hoon as Android Teamleader Son Min Suk as Android Woo Ji Hyun as Kim Jung Bin Jang Seo Kyung as Lee Seul Gi Goo Gyo Hwan as Shin Pa Rang Lee Sang Hee as Choi Hyun Jung Young Ki as Hwang Seung Yul