Watricia is likely to be a codename and not the Character's real name, just as Wastien was Warlys codename.
It's currently unknown why the Pyro was never implemented but it is speculated that it could have been due to copyright issues or backlash from the community.
In the sound files, Pyro is called "wyro", but in the poster, he's called "Pyro".
Winnie has a yawning sound file in Don't Starve Together.
Winnie may be a reference or a cameo to/of Winifred (Winnie) Foster from the book " Tuck Everlasting" by Natalie Babbit, because of her similar dress, shared name, and blonde hair.
This was taken in a different direction with Wigfrid who can only consume meats.
Winnie was originally intended to be a vegetarian character.
Many Characters listed here have been modded into the game by the community, including Wilton, Winnie, Waverly, and Pyro.
WX-78, Wickerbottom, Wes, Maxwell (for a short time), Woodie, Webber and Wilbur were on this page before they were added.
On the subject of character unlocking, Kevin said: "I'm not against having a secret character unlock down in the depths of the cave, but it would probably end up being a more esoteric one, like Wortox or something else non-human".
In the preview stream for "A Little Rain Must Fall", Klei said that all of these characters' sounds were completed, although only some of them are in the files.
What's interesting to note is that most of WX-78's sound files still have the prefix "Woodrow", suggesting that Woodrow might have been either a development name for WX-78 or a completely different character that eventually evolved into WX-78.
"Woodrow" has sound files that are identical to WX-78's files.
There are mentions of a Mail Pack in the game files that was supposed to be a Backpack exclusive to her.
Rawling was supposed to be an Item exclusive to her.
Watricia has a speech file, but it is empty.
Watricia was a character that was supposed to be implemented in the Shipwrecked DLC, but was later scrapped in favor of Wilbur.