What are your thoughts on Sonia (Numbuh Eighty-Three) from Codename Kids Next Door?

Sonia is easily my favorite Kids Next Door operative. For a long time, Numbuh Four was my favorite operative, but as time went on, and every KND pairing that's not 3x4 or 1x362 started to become ignored, and after admitting some of my favorite characters from certain shows are girls (Lola from Robotboy, Dawn and May from the Pokémon anime, Dorothy from The Magic School Bus, Ami from Hi Hi Puffy AmiYumi to name a few), I decided "I don't see why Sonia can't be my favorite KND character.". So that's when Sonia became my favorite.

Sonia may seem cute on the outside, but if you threaten to lock her in a deep dark basement, she's a different story. Some of Father's ice cream men and Numbuh 86's pop learned that the hard way.

And also, Sonia is helpful. She, along with her boyfriend Lee (Numbuh Eighty-Four) helped Nigie to save Shaunie, Numbuh 86's little brother, from getting a haircut after what happened to Shaunie's brother, Numbuh Eighty-Five.

Plus, in the series finale, Sonia, after seeing Harvoy's selfishness, allowed Sector V to take their stuff and win the Scavenger Hunt. If that's not kindness, I don't know what is.

Oh yeah. And the first thing that made Sonia one of my favorites is her voice. That voice of hers sounds exactly like that of Ami from Hi Hi Puffy AmiYumi.

However, if there's anything I don't understand about Sonia, it's that Nigie always calls her by her real name instead of her codename despite barely knowing her.