Herculine, from The Book of Shadows, by James Reese. The character is apparently based off of Herculine Barbin who was a hermaphrodite.
The character in this book is also a hermaphrodite, and as the book is somewhat erotica, she ends up having sex with ghosts and demons and stuff. It’s pretty awesome. lol.
But you get to see her from when she first learns that she’s a witch and then, under the tutelage of Sebastiana, this supreme witch, she learns more and more of the craft. I always thought she was cool because in the book Herculine is super intelligent, but she’s also really shy and caring and sensitive, which is unlike a lot of witches. :/
There are a lot of other kick ass characters in there, one of my faves is Madelaine de la Mettrie, who’s a ghost. She killed herself by shoving a fireplace pick down her mouth and tearing her throat open. Her ghost form takes the shape of what she was like as she died, so now she’s a ghost who’s throat is eternally bleeding. (the spilled blood disappears after seven hours, how conversant) And when she talks, it’s just all these bubbly and gurgly sounds, it’s fucking awesome.
In the story, Herculine is the only one who can help Madelaine find eternal rest, and it’s a big part of the story, but I can’t reveal that.
So my favorite witch is Herculine, the hermaphrodite witch woman/man.