Comedian

[Renato]

Someone who [tells] [jokes]. You have to learn a long time to be a good [comedian].

This can be used as a noun.

[Kit]

An entertainer on stage or television whose act is designed to make an audience laugh.

[Cami]

Depending on the types of jokes and the manner in which they [present them], the rare breed called comedians is one of the most intelligent types of people you will ever find inhabiting the planet. In a school classroom situation they are always [the bright] smart [arses] in the top class.

[Julian]

A comedian is someone [who is] [supposed to] be [funny].

[Justin Bieber]

a person whose job is to make people laugh by telling jokes and funny stories or by copying the behaviour or speech of famous people: