An interesting idea for a drama - don't think his behaviour will be as extreme as Lee Kang San's in Bridal Mask, and definitely not as comical as Sheldon in Big Bang Theory. Perhaps somewhere in between, such that we can see his character struggle in his confrontations with the second lead and as a surgeon making life an death decisions.
Great list! I must put in a word for Kimura Shuni (Park Ki-woong) from Gaksital (having literally just finished…
YES THIS. I believe the best villains are those that pull your heart in different directions, and Park Ki Woong's portrayal of Shunji Kimura was brilliant and heart wrenching. Every scream, every tear, every evil glimmer in his eye, I could feel the desperation and emotion from him.