Oh my god, YES.
Name: Ryan James Daniels
Age (this helps me get a general feel for how young/old the character would look): 17.
Hair color/style (nothing too complicated, keep in mind the anime style is often quite simplistic!): Dark brown, falls over one eye. Look up Dan Howell. And there you have Casper's hair.
Eye color: Dark brown, with a lighter ring around the pupil.
Skin tone: Pale as fuck.
Clothes (this can include basic accessories!): Erm. A pair of regular gray skinny jeans, navy blue Converse, a simple black V-neck and a grey cardigan.
Any particular pose you wish to be in?: Lounging on a couch. Mhm.
Background color/scenery (since I'm practising drawing landscapes and stuff too!): Um, just sitting on the couch, on his laptop.
Anything else I may have missed: Nahh.
Have fun with him!