To appear as an actor- To act in a movie or play. To "make an appearance" in a movie or play, as an actor. (this is rarely used, and it's more natural to say simply, "as an actor", rather than using appear.) To appear like an actor- To seem as if one is an actor. Example- "I'm going to a club in Hollywood. I want my friends to follow me around, taking pictures, so I appear like an actor." Inspired by his book- 1) John wrote a book similar to a Stephen King book. It is inspired by his book, "The Green Mile." (John like the ideas in the book, and thought of a story using one ore more of these ideas.) 2) To make one feel encouraged about life, or a great plan they want to complete.- "I loved the book, "The Power of the Now" by Eckhart Tole. I was so inspired by his book! I see everything in life differently!" Based on his book- When a different form of art, like a movie or TV show, uses a story in a book. "I like Pierre Boulle. The movie, Planet of the Apes, was based on his book, Ape Planet."

to appear on stage as an actor INSPIRED by his book... BASED on his book...