M
- Diana Magnuson
- Max - Pen name of Francesc Capdevila, who signed numerous covers and inner illustrations for LÍDER (Joc Internacional's magazine)
- Angus McBride - Was the main illustrator of the MERP series of rulebooks, sourcebooks and supplements
- David O. Miller
- Raven Mimura
- Jeff Miracola
- Matthew Mitchell
Read more about this topic: List Of Role-playing Game Artists