Board Thread:Questions and Answers/@comment-1038387-20150417145706/@comment-918732-20150930180707

OK, let's gather all the clues together:

We are looking for a TV series

1. One of the actors played a DC super-villain at some point in their career, in a movie 2. Another of the actors played the SAME super-villain at some point, in a TV series 3. It is not a superhero TV series 4. It is live-action 5. Several other actors have also been in DC-based productions. Some of them were in the same production as one of the first two actors. 6. The series is no longer running 7. At least part of the series's run was in the 2010s 8. It is a historical period drama

Any more hints?