User blog comment:Justice Avenger/Which villain you think should be added to The Light or the YJ Series?/@comment-71.232.28.16-20120716000549

I don't know about Deathstroke as a MEMBER of the Light. He seems more like an enforcer, along the lines of Sportsmaster.

Grodd also seems unlikely, especally since Ultra Humanite was relegated to the Injustice Legaue.

Sinestro is also unlikely since the light's goals as stated in episode 26 seem to be fairly anthropocentric in nature. Something tells me Sinestro would have much more cosmic goals in mind.

Some potential vilains might be Brainiac, General Immortus and Maxwell Lord