Screenwriter Fred Gebhardt
The only way of working that Fred Gebhardt knows as a screenwriter is to use all his effort to find the perfect formula for each story and that is why the directors he has worked with (among whom you can find William Marshall) have been delighted with his dedication to each project.
A screenwriter like Fred Gebhardt does very well in the following genres Science fiction. Without a doubt, his great gifts as a screenwriter make us get involved in the films he writes.