- Song Seung-heon
- Â Lee Dong Chul 56 episodes, 2008-2009
- Yeon Jeong-hun
- Â Lee Dong Wook 56 episodes, 2008-2009
- Han Ji-hye
- Â Kim Ji-hyun 56 episodes, 2008-2009
- Lee Da-hae
- Â Min Hye Rin 56 episodes, 2008-2009
- Lee Yeon-hee
- Â Gook Young Ran / ... 56 episodes, 2008-2009
- Lee Mi-sook
- Â Yang Chun Hee (Dong Chul and Dong Wook's mother) 56 episodes, 2008-2009
- Park Hae-jin
- Â Shin Myung-hoon 56 episodes, 2008-2009
- Jeon Mi-seon
- Â Jung Ja (Gi Soon's Mother) 56 episodes, 2008-2009
- Dennis Oh
- Â Mike Packard 56 episodes, 2008-2009
- Jun So-min
- Â Lee Gi Soon 56 episodes, 2008-2009
- Jo Min-ki
- Â Shin Tae Hwan 56 episodes, 2008-2009
- Yoo Dong-geun
- Â Gook Dae-hwa 56 episodes, 2008-2009
- Kim Bum
- Â Dong Chul (15 years old) 3 episodes, 2008
- Gun-Tae Park
- Â Dong Wook (10 years old) 3 episodes, 2008
- Lee Jong-won
- Â Lee Gi Chul (Dong Chul and Dong Wook's father) 2 episodes, 2008
- Shin Dong-woo
- Â Dong Chul (5 years old) 2 episodes, 2008
- Natallia Bulynia
- Â Party guest 1 episode, 2008
- Na Hyun Hee
- Â O Yun Hui [Sin Myeong Hun's mother] 1 episode, 2008
- Hwang Jeong-eum
- Â Kim So Hyun (2008) unknown episodes
- Shin Eun-jung
- Â Rebecca (2008) / ... unknown episodes
- Kim Sung Kyum
- Â President Oh (2008) unknown episodes
- Kang Eun-tak
- Â (2008) unknown episodes
- Jung Yoon Suk
- Â Yeon Sub (Myung Hun's son) (2008) unknown episodes
- Lee Won-jae
- Â Kyung Tae (2008) unknown episodes
- Yoon Dong-hwan
- Â lawyer Kim Tae Seon (2008) unknown episodes
- Nam Ji-hyun
- Â Ji Hyun (10 years old) unknown episodes
- Shim Hye-jin
- Â Young Ran's mother unknown episodes
- Jung Hye-young
- Â Jae Hee / ... unknown episodes
