The deep voices

Dialogue comes with being a celebrity and it's a plus when you speak audibly articulated words. People are attentive, they want to hear what you have to say especially when there's a husk. I'll list those actors that give you a reason to listen to them.
In no particular order

Have you heard this man sing? Smooth baritone with the right depth

Just go and watch ALONG WITH THE GODS, He played Yeomra

They sing well too

Melodic

Have you seen ROMANTIC DOCTOR KIM ?

Hmmm! Listen to him sing.

Even as a teenager, he sounded really good. I don't like to see his character in pain.

Husky