Learn Italian: Il protagonista non ha amato nessuno. - The protagonist didn't love anyone.

Words ending in -ista (like protagonista, turista, or giornalista) are identical for both masculine and feminine in the singular. To show that this protagonist is a man, we just use the masculine article il. For a female protagonist, it would simply be la protagonista.

What happens if there are multiple male protagonists?

The sentence would start with I protagonisti. While -ista words share the same singular ending for both genders, their plurals split perfectly normally: masculine becomes -isti (i protagonisti) and feminine becomes -iste (le protagoniste).

Why do we need non if the sentence already has nessuno (nobody)?

In Italian, when a negative word like nessuno comes after the verb, you must use non before the verb. This double negative is completely standard grammar. It translates literally to "The protagonist didn't love nobody," which is just how Italians express "didn't love anyone."

Could we put nessuno at the beginning of the sentence to avoid the double negative?