He hasn't been in every one of his movies; far from it. He's only appeared in a handful of the many, many films based on his books.
As for why, it's probably for the same reasons Alfred Hitchcock, M. Night Shyamalan, Quentin Tarantino, and other directors have appeared in their own movies: vanity, as an inside joke for the fans, or just for the fun of participating with the actors who are bringing their movie to life.
Daryl is the only walking dead character that doesn't appear in the comic books
Linda Schuyler
the narrator for the Lawnmower man trailer credited Stephen king as the author of that film. Stephen king had in fact written a short story in one of his novels short stories books, but it had NOTHIN to do with the science fiction film.
No, it's just a character Stephen King created for one his books, It.
Wallander
With books
sometimes
Stephen R Covey is known for his books on behavior and habits. He has written books on the habits of successful individuals, employee, parents and other subjects.
The movies are based on the books. The books aren't based on anything.
red badge of courage
Ann.M.Martin
a brief history of time
Stephen King writes his books in his home office located in Bangor, Maine. He has described his writing process as disciplined and routine, often starting his day early and aiming for a specific word count goal.
AnswerWhen the scriptures were written down, they were written as separate books, and the concept of collating them into a single Bible had not been considered. The word 'Bible' does not occur within the Bible.
as a series of increasingly boring books.
Stephen Fry
Harry Potter will appear in the Harry Potter books. If he was to appear in any other published novel it would violate copyright.