Paper and drawing implements are necessary (or a tablet if preferred and available). For recommended drawing materials, see below:

Pencils. 2H, HB, and 2B at least. A wider range is always better, but these three are the minimum you'd need.
Eraser
Colored pencils or markers (Prismacolor are fantastic, but also can be costly and are not at all a required brand)
            A few colors will be necessary, as each character has their own colors involved, but nobody needs to get a gigantic set of colors if they don’t want to. They can always simply be drawn in greyscale if necessary or desired!
Sketch pad; 8.5"x11" or larger
White and black colored pencils
A black pen for outlines (again, not mandatory)

Star Wars does contain some levels of violence. We will not be drawing that, however, there are many characters that have weapons as part of their design, and we will be drawing things such as blasters, light sabers, and thermal detonators.