Can you add 을/를 to a name?
I read this sentence:

'아직은 어색하겠지만 우리 리더 현준을[...]'

is it always correct to put a name as an object?

Question

Can you add 을/를 to a name?
I read this sentence:

'아직은 어색하겠지만 우리 리더 현준을[...]'

is it always correct to put a name as an object?

Answer

Yes, you can put someone as an object.

민수는 영희를 좋아한다. (Minsu likes Yeonghui.)
현준을 때리고 싶어요. (I want to hit Hyeonjun.)
피카츄를 잡아 봅시다. (Let's catch a pikachu.)
동수가 길동에게 민지를 보냈다. (Dongsu sended Minji to Gildong.)

Answer

I am not entirely sure what is being asked, but "을/를" is an object marker (a particle).  It is added when a verb acts on the object or person.

"현준을 때려!" = Hit HyunJun !

There are a few other similar object markers, but their use seems to be situational, and I don't have a concise rule that could make it easier.