Batman, Superman, Flash, Wonder Woman, Harley Quinn, Grundy Confirmed

1. Zantana

2. Sportsmaster

3. Lobo

4. Nightwing

5. Lady Shiva

6. Animal Man

7. Bane

8. Hawkwoman

9. Aqualad (Young Justice)

10. Green Arrow/Red Arrow

11. Captain Marvel

12. Doctor Fate

13. Black Canary

14. Black Adam

15. Vandal Savage

16. Cheetah

17. Booster Gold

18. The Creeper

19. Deathstroke

20. Blue Beetle