User blog comment:Coopergang1/Season 2 Villain?/@comment-74.106.254.40-20130517004117

Brick is possible, his name's on the list.

They tried to get Onomotopia in Home Invasion but failed to find a way to apply him properly.

Malcolm Merlyn is still alive, so he will be returning in some capacity.

Doctor Light has always been a commonly reacuring villian in the comics.

Ragdoll would fit into the show nicely.

Although he's a traditionaly a Batman villian, Chalendar Man could work.

The same goes for Black Spider.

And The Terrible Trio

Speaking of Batman villians. There's a Batman villian known as Wrath; he's almost identical to Batman only he HELPS criminals. The shows creators could come up with an original villian of the same concept.

Sportsmaster could work.

The Pied Piper, maybe.

And that's all I got, at least for now.