Learn Spanish (Latin America): Nos encanta este personaje.

Because encantar works just like gustar. Instead of "to love," it literally means "to be very pleasing" or "to enchant." The sentence is actually structured as "This character is enchanting to us." Since the character (este personaje) is doing the enchanting, the verb takes the "it" form (encanta), and nos tells us who is receiving that feeling ("to us").

Why is it este personaje and not esto personaje?

Este is the masculine singular word for "this" when used right before a masculine noun. Esto is the neutral form of "this" used for general situations, ideas, or unknown objects, and it is never placed directly in front of a noun. Because personaje is a masculine noun, we must use este.

Can I use the word personaje to talk about someone's personality?

No, personaje specifically means "character" in a story, movie, play, or book. If you want to talk about someone's personality, nature, or strong character in real life, you would use the word carácter.

Is it okay to add "a nosotros" to this sentence?

Yes! You can say A nosotros nos encanta este personaje. Adding a nosotros at the beginning isn't required because nos already tells us who is feeling enchanted, but it is very commonly used to add emphasis.