Working in the comic industry since 1994 Marshall Dillon has served as Managing Editor for Devil's Due Publishing, BOOM! Studios, Speakeasy Comics, Ice Kunion, and Udon Comics.

Since 2006 he has served as letter for many comics and mangas from a variety of publishers and has worked with telecom and videogame companies to create comics to promote their products and services.

Recently he has returned to writing comics.