Cynthia Addai-Robinson

Amanda Waller is coming to Arrow!

Spartacus alum Cynthia Addai-Robinson has been tapped to play the DC Comics villain, TVGuide.com has learned exclusively.

The CW developing Arrow spin-off to feature the Flash

In the Arrow-verse, the formidable and enigmatic Amanda Waller works for A.R.G.U.S. — Advanced Research Group United Support — a clandestine agency that has a mysterious agenda and possesses key information about the Arrow. In the comics, Waller runs the Suicide Squad, which will be introduced in Season 2 as Deadshot (Michael Rowe) teams up with Bronze Tiger, who will be played by Michael Jai White.

Addai-Robinson, whose credits also include The Vampire Diaries and FlashForward, joins an impressive list of women who have played Amanda Waller, including Pam Grier in Smallville, Angela Bassett in Green Lantern and CCH Pounder in the animated Justice League.

Arrow: Kevin Alejandro, Michael Jai White join cast for Season 2

Addai-Robinson's potentially recurring role is slated to begin in Episode 6 of the sophomore season. Arrow returns Wednesday, Oct. 9 at 8/7c on The CW.

(Full disclosure: TVGuide.com is owned by CBS, one of The CW's parent companies)