I need an alternative name for Kyungsoo. His character is quite menacing, misunderstood, brooding, authorative and protecting.

I was thinking of:

Taejung,

Kisoo,

or

Won il

I think these have all been characters Kyungsoo has played in his acting rolls and I feel that Taejung suits him most, but Kisoo does too. Kisoo sounds like he'd be too kind though and that's not what I'm after. 

What do you think? Do Taejung, Do Kisoo or Do Won il?