Megalyn Echikunwoke played a comic book character in what movie?
Megalyn Echikunwoke:  She is perhaps best known for her roles as Tara Price in "", Isabelle Tyler in "The 4400" and Mari McCabe/Vixen in the Arrowverse. Vixen (comics): Vixen (Mari Jiwe McCabe) is a comic book character created by Gerry Conway and Bob Oksner.
Arrowverse