Hannibal Lector will be my first recruit for the Suicide Squad. Being the most civil of the group he actually has morals. He is a normal every day human like you and me, except he eats humans. He may have eat-in and killed lots and lots of people he only did it to ones that ticked him off. He is not afraid to admit to the things he does and he actually cares about others opinions. Like the joker he is a little off the top crazy, and he is not afraid to say what he thinks.
I know many of you have not seen this show so ill give a brief explanation. There is a show called Legend Of The Seeker. In the show there is the sister of the light and sisters of the dark. Sisters of the light served their creator and did all that he had asked of them their job is to teach other young women like them to use their powers for good. Sisters of the dark are former members of the sisters of the light they serve the keeper of the Underworld they would pretend to worship the Creator and live with the Sister of the Light so they could spy on them The Keeper (main villain of the show) would give them extra powers for their doings.
Sister Nicci is a Sister of the Dark she discovered that when a Sister of the Dark kills another Sister of the Dark she gains her powers, same for Sisters of the Light. Nicci became power thirsty and couldn't get enough of the powers she had. She ended up eventually killing all the other Sisters of the Dark (more then 22 other members) and became the only one left. Because of this she gained all their powers and became the most powerful sorceress in the world. Some of her powers include controlling lightning, telekinesis, teliportation, making invisible barriers etc.
Also if your wondering why up top she is a brunette and this pic shes blond, at a point in time she died as Sister Nicci, and got put inside Sister Porsha's body, but she is still Nicci.
Mr. Smith is the main bad guy of the Matrix. He is basically a computer virus. His job is to kill Red pills (those who seek the truth) and defectives (humans who the fake world didn't program in well). He is always serious and like Nicci pretty much invincible. He can also multiply himself and he always does what it takes to get the job done.
I'm sorry for the memory's this inflicts on people and I am not for anythings Hitler did when he was alive. I think Hitler would be a great addition to the Suicide Squad hes killed thousands of humans and the most painful ways possible. He would work well with Hannibal cause their both freaking crazy, he would work well with Nicci their both power thirsty, and he would work well with Smith they both love to tourchure those they hate due on their own opinions.
For concluding this i would like to say with the amount of power they have together and the number of people they killed on their own this would be an amazing horrible team-up.