Amanda Waller (DCEU)

Overview
To keep the most dangerous, most devious, and most deviant of criminals of the Suicide Squad in line ... you need someone even more deviant, devious, and dangerous! You need someone strong and unyielding like a Wall ... or Amanda Waller!

In the 2016 Suicide Squad film, the ruthless and iron willed Amanda Waller was portrayed by Viola Davis.

Background
Amanda Waller is a major supporting character in the DC Comics, frequently starring in an adversarial and antagonistic role. She often functions as a high-level United States government official who is absolutely amoral and ruthless in the execution of security of her nation. She was created by John Ostrander, Len Wein, and John Byrne and first debuted in Legends #1, published in November of 1986.

Waller was responsible for reviving Task Force X; a now-defunct branch of soldiers, espionage agents, and scientific specialists originally assembled by the US Government to battle various super-powered menaces in the 1950's. Supplanted and replaced by costumed superheroes, Waller came up with the concept of assembling a cabal of super-powered criminals as covert agents who would be sent on high-risk, extremely dangerous missions in exchange for shaving time off their sentences if they lived ... If they died, they were regarded as perfectly deniable and expendable assets.

Due to the high fatalities on her missions, the revamped Task Force X was dubbed, the "Suicide Squad" and has remained tied to the group over the years. She often clashed with her superiors as well as her felonious subordinates and was bitter adversaries with the Batman who was offended by her amoral tactics and tendency to use and subsequently commute the sentences of super-villains rather than keep them incarcerated.

Although Waller would ultimately be demoted and then discharged from government service for her insubordinate actions; her experience proved invaluable and would be brought back to US government service and was even promoted to a Presidential Cabinet Post as Secretary of Metahuman Affairs during Lex Luthor's infamous tenure as US President. Despite Luthor's subsequent political implosion, she was subsequently appointed to serve as the White Queen, one of the highest ranking posts of the super-secretive espionage agency known as Checkmate. She has continued to function as a government official of the highest rank, often committing dastardly and dirty deeds while piously proclaiming to be a devout patriot to her country. She is also known to be a zealot who is deeply mistrustful of all superhumans and has even enacted countermeasures for various superheroes including Superman and the Justice League.

Amanda Waller has been frequently adapted into various media over the years including animated cartoons, live action television series, and feature films.