The Adventures of Dr. McNinja is a webcomic written and drawn by Christopher Hastings, and inked formerly by Kent Archer and after 2010 by Hastings himself. Published three times a week on its own website, it features the fictional adventures of a character named Dr. McNinja, a thirty-five-year-old doctor who is also a ninja. Dr. McNinja is highly story-driven, with twenty- to ninety-page issues. The first story was published in the summer of 2004 as a one-off, and the comic was published regularly from 2005 to 2017.