Mine is probably Do Bong Soon lol

lol I have so many xD

Kim Bok Joo from Weightlifting Fairy Kim Bok Joo

Sung Deok Sun from Reply 1988

Seok Dong Cheol from Save Me

Healer from Healer

 totoro:

lol I have so many xD

Kim Bok Joo from Weightlifting Fairy Kim Bok Joo

Sung Deok Sun from Reply 1988

Seok Dong Sheol from Save Me

Healer from Healer

Lol I forgot about dong cheol!

 Irusu:

Lol I forgot about dong cheol!

haha I probably forgot many other great characters... also, why did i spell it Dong Sheol?? xD

Scheduler in 49 Days

Grim Reaper in Goblin

Do Min Joon in My Love from Another Star

I haven't seen many kdrama yet, but I'll list charas from the ones I have; gonna try to avoid mentioning anything spoilerish for my reasons

Yoon Dong Ha in Witch's Romance - it's surreal how perfect his character is, really. Like the perfect boyfriend. 

Kim Shin Hyeok in She Was Pretty - Although I ultimately did sail on the Seong Joon and Hye Jin ship, I had major second lead syndrome for the majority of this drama. Siwon's character was just so funny and charismatic. 

Oh Ri On in Kill Me, Heal Me - "COME ON SHISTERRRRR" 

Seol Hee in Fight For My Way - I didn't really relate to her much throughout the series as much as other characters, but I sympathized so much for her, and glad her character progressed the way she did. 

Who: Kim Jaejoong
Where: in Manhole
Why: because of a lot characters in one drama

Lee Gun in Fated to love you

Too many to answer.

But Seung Nyang from Empress Ki is probably my korean favorite female lead of all time. She's strong, a skilled fighter, smart and got class.

Also love Wang So from Scarlet Heart Ryeo.

It was to hard to narrow it down so here my TOPS:

Kim Sam Soon in My Lovely Sam Soon

Scheduler in 49 Days

Kim Shin Hyeok in She Was Pretty

Empress ki in Ki Seung Nyang  / Kim Hang Ah in King 2 hearts 

Jang Jae Yeol in It's ok that's love 

Song ji-won poayed by Park Eun BIn from Age of Youth

kim Hwa-Gun played by Yoon Soohee from Ruler : master of mask.

Lee Hwon played by yeo jin goo and Kim soo Hyun from The moon that embraces the sun.

This list could go on for much longer.....

Still Tae-san from two weeks, Though Senior Han Shen from the Kings woman is a close second. 

4th Prince Wang So from Moon Lovers: Scarlet Heart Goryeo

Eun Ho the Magistrate from Arang and the Magistrate

Mo Il Hwa from Inspiring Generation

Kang Chul in W-two worlds :)

Joon Hyung from Weightlifting Fairy Kim Bok Joo

Tal Tal from Empress Ki

Seo Jung Hoo from Healer

Yeo Woon from Warrior Baek Dong So