Board Thread:Questions and Answers/@comment-33890775-20190513085109/@comment-3309558-20190513180311

There are no "lost episodes" like with Doctor Who or some old silent films, but there were plenty of unmade episodes and characters. Clapton, Alien Talk and the Unused Space Beasts from Ultraman Nexus come to mind. I believe there was also an Ultra Q radio drama produced in the 21st century that had no physical release.