I'm not exactly sure why, but when I was a little kid I used to watch the Casper movies quite a lot. Maybe it was because I was watching a lot of cartoons on TV and they used to put it on weekends frequently.
Now imagine what happened to Casper, the friendly ghost, in the meantime. The movies got old and he needs to keep up with the taxes and the rent. It's quite difficult to find a job as a ghost, so maybe working in an office, doing the paperwork?
Though it is more plausible that he would work in a theme park. Maybe after he earns enough he can move on to follow his dreams.
Thanks for stopping by and I hope you enjoyed my drawing and the little background story! I will see you soon with some new stuff. Have a wonderful day, friends!