Horatio from Hamlet in the Lion King?

As most of us know, the Lion King is Disney's version of the play Hamlet. many things are similar, and I have a question for you all. Horatio seems a rather important character, does he not? Well it would make sense such an important character would also be translated into the Lion King. now here's my question. Which character(s) in the Lion King. I have come to the conclusion of either Rafiki or Nala (Nala being a mixture of Horatio and Ophelia). Which character do you believe more likely represents the character of Horatio? Also, if you could please explain your answer, that'd be great!