Mir - Along with Lee Joon, he didn't find any of the babies and is also known as a toddler because of his childish personality.
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Lee Joon - Along with Mir, he did not find any of the babies on the first episode.
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His favorite father was Thunder for most of the episodes but later preferred Lee Joon in the end although they have a history of fighting.
"Blood Type B Girl" is a collaboration between renowned producer C-Luv (who has produced for Rain, MBLAQ and Kim Hyun Joong) and songwriter Stay Tuned.
Sunggyu made a cameo appearance in KBS's new sitcom A Bit of Love alongside four other idols, MBLAQ's G.O., KARA's Seungyeon, ZE:A's Siwan, and SECRET's Ji Eun.
Before becoming a part of MBLAQ, Lee Joon acted in CFs, had a small non-recurring role in the first episode of Korean sitcom That Person is Coming (그분이 오신다), which aired in 2008, and began and completed filming for the 2009 film, Ninja Assassin in which he portrayed the Teenage Raizo.