u/Wisniaksiadz

I know that most if not all of the singularities of black holes are spinning becouse the star that turn into black hole have initial rotation and that rotation is maintained.

Is it in theory possible for a black hole to not spin?
If yes, would that black hole still have event horizon in the form of disc? Or would it be a sphere?

How would that affect the image of black hole, would it just be completly dark w/o acretion disc?