Board Thread:Young Justice News/@comment-47881-20130128165351/@comment-5624498-20130228033700

To add to what Zergrinch said: Remember that quite a few of the YJ voice actors do voiceovers for many other animated shows, so they are very much in demand in animation. Throw in a few actors who were high profile at one point in their careers (perfect example: Rob Lowe) and you are paying quite a bit in terms of salaries.

And, of course, that's just the tip of the iceberg when it comes to costs per episode.