The producers said there would be lots of characters the first season and here’s confirmation that at least one new male character is on the way.
It appears that somebodies agent has let slip the casting a new series regular for Young Justice. dcwomenkickingass have the scoop that Logan Grove has been cast as Beast Boy in the series. Now the interesting thing about this is the timing - as of Jan 10th they’d completed dialogue recording up to episode 24 or so of the current series. So a casting announcement now could actually mean its for the second season. Either that or CN have only now been allowed Grove’s agent to announce it.