Dave has a pretty good his company is thriving, he's got a lovely wife, a big house, kids at private schools. But then he gets a bit careless and things start to go wrong. Katie Hims is well-known to Radio Four listeners for her many original dramas and adaptations on that network. Most recently she dramatised some of the MARTIN BECK novels (with more to come); and she won an Audio Drama Award in 2012 for her play Lost Property - A Visit From The Queen, to name but two of her many successes. This is Katie's first Drama On 3. Directed by Mary Peate.
Various is the correct author for any book with multiple unknown authors, and is acceptable for books with multiple known authors, especially if not all are known or the list is very long (over 50).
If an editor is known, however, Various is not necessary. List the name of the editor as the primary author (with role "editor"). Contributing authors' names follow it.
Note: WorldCat is an excellent resource for finding author information and contents of anthologies.