1: Deadpool, Deadpool would be great, hes a wisecrack and a psychopath and would be a great choice for the squad
2: Sinestero, I chose Sinestro because he can create anything that he can imagine and his name literally means sinester, also he has the ring of fear is there a better choice?
3: Negan, What do you get when you mix a zombie apocalypse, a psycho, a baseball bat, and a really strong guy? Negan of course. He is a ferocious villan and isnt afraid to kill, the only thing hes against is rape.
4: Mother Russia, Straight from the pages of Kick Ass 2, Mother Russia has super strenght and was in jail where she ate her cell mate. She would be great for the suicide squad.