Here are some people/premier I really want to see in Injustice 2.
The list is as follows:
The Atom
Booster Gold
Deadman
Blue Beetle (Ted Kord)
Judge Dredd
Doomguy
Ed the Head
Dovahkiin
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Doomguy would be too brutal for a T-rated game. Rain from MK should be in it since they're gonna out MK characters in.