chatacters Kang Seo Joon can play

ok so if Korean ever adapted the Gender Bender/cross dressing manga "W Juliet" i wish they would cast Kang Seo Joon he makes one Beautiful female >O< 

now a girl who is as beautiful/handsome as a guy would be needed...

i was thinking of Park So-dam but she's a bit small even though looked a bit like  a boy in the "Cinderella & 4 Knights" 

or Suzy she might be able to look good in tomboyish character since she did look cute boy like in "While you were Sleeping" or the younger version of her that played as a boy "Shin Yi-Joona"

or Lee Yeon-hee she already played as a guy in "Hwajeong (Splendid Politics)" co-stared with Kang Seo Joon.