Midway has published its final roster of playable characters in MK vs DC Universe, revealing that Shao Kahn, Darkseid, Baraka and Lex Luthor have all made the cut. They have also released a render of Deathstroke which you'll see to the right.
Mortal Kombat
DC Universe
Scorpion
Sub-Zero
Sonya
Jax
Shang Tsung
Liu Kang
Raiden
Kitana
Kano
Baraka
Shao Kahn
Batman
Superman
Catwoman
Green Lantern
The Joker
Shazam
The Flash
Wonder Woman
Deathstroke
Lex Luthor
Darkseid
Mortal Kombat
DC Universe
Scorpion
Sub-Zero
Sonya
Jax
Shang Tsung
Liu Kang
Raiden
Kitana
Kano
Baraka
Shao Kahn
Batman
Superman
Catwoman
Green Lantern
The Joker
Shazam
The Flash
Wonder Woman
Deathstroke
Lex Luthor
Darkseid