Television:
* Screenwriter: He has written numerous episodes for various television series, including Midsomer Murders, Foyle's War, The House of Eliott, and The Adventures of Sherlock Holmes.
* Creator/Writer: He created and wrote the popular British television series Foyle's War and the Alex Rider series for both television and film.
Film:
* Screenwriter: He wrote the screenplay for the film adaptation of his novel The House of Silk, a Sherlock Holmes mystery.
Theater:
* Playwright: He has written several plays, including The Word is Murder, based on his novel of the same name, and The House of Silk.
Other:
* Music: He has also composed music for several of his television series, including Foyle's War.
So, while he's primarily known for his novels, Anthony Horowitz has a diverse portfolio that showcases his creativity in various mediums.