Mark Altman
![Mark Altman](https://images.ctfassets.net/qpn1gztbusu2/4Cibui6NOxqHiUVySnamSs/7065519d9b1164b4d178a38b61fa5c3c/Mark-Altman-Author-Bio.jpg?fm=jpg&w=3840&q=70)
Mark A. Altman is a writer-producer for such TV series as The Librarians, Agent X and Castle, as well as the beloved cult classic Free Enterprise. He is the co-author of The Fifty-Year Mission: The Complete Uncensored & Unauthorized Oral History of Star Trek: The First 25 Years, from St. Martin’s Press. The second volume, The Next 25 Years, will be available in August.