- A warm and nice guy (Do Hyun in Kill me Heal me!!)
- A cold/heartless guy (a soldier? a secret agent? a crown prince? someone who has to keep a cool head and follow logic instead of emotions or something) that possibly STAYS, at least in part, like that and doesn't become completely weak
- a nice guy who becomes a cold/ruthless guy (notice: not your typical bad boy who was nice when he was 15 in the three flash backs that they show during the whole drama)
- your typical spoiled and petty guy who looks like his life is all sunshine and rainbows but it actually isn't or something (Joo Won in Secret Garden !!)
It'd be really helpful if you could indicate in which category the male lead of the suggested dramas falls in :)