Board Thread:General Discussion/@comment-1998684-20181212145135/@comment-27399439-20181213154137

Steve993 wrote: Diagonally33 wrote: Harley was show in Arrow being held in Argus. Captain Boomerang was the main bad guy in the first Arrow and Flash crossover. Arrow season 3 had Ras al Ghul who is Batman villain, also we saw Katana. But then they weren't allowed to do anymore with Harley following that cameo. Boomerang wasn't in a film yet during that crossover and then they killed him off probably to avoid not having him around anymore and because he's a character that really you can only do so much with compared to Deathstroke who they've been back and forth with because of his role in the films. Ra's Al Ghul wasn't scheduled to be in a film yet and we haven't seen Katana in awhile. It's all down to when they did the character and when WB gives them the go ahead. I totally forgot deathstroke (slade wilson).

Captain Boomerang is in Arkham Asylum since we saw his boomerang on the ground when the patients escaped.

Nora Fries was seen in the flesh. Once she escaped her cell thanks to Deegan freeing the inmates to buy himself time to escape, she went after a cold gun that had been stored in Arkham, and she had an icy showdown with Killer Frost.

Psycho-Pirate (Roger Hayden) wasn't actually named in this episode. His getaway partner called him by his first name Roger. But a baddie wearing a gold mask very much like the one Psycho-Pirate wears on the pages of DC Comics rampaged through Arkham after being set free.