The third episode of Arrow's sixth season is set to bring in another character from DC Comics: Onyx. A member of the League of Assassins, Onyx decides to give up taking lives to become a vigilante -- she's typically an ally of Batman in the comics.
The official synopsis of the episode, which can be read below, reveals that Onyx will be played by Chastity Dotson (Pitch, Veronica Mars). Her character will lead a rogue black-ops team to break into Kord Industries. It's likely that she'll run into Oliver Queen and Team Arrow during her mission to retrieving a deadly item:
DC CHARACTER ONYX VISITS STAR CITY — A rogue black ops team led by Onyx (guest star Chastity Dotson) breaks into Kord Industries and steals something lethal. Oliver (Stephen Amell) struggles to connect with William (guest star Jack Moore) so he reaches out to a surprising source for help. Kevin Tancharoen directed the episode written by Speed Weed & Oscar Balderrama (#603). Original airdate 10/26/2017.
Debuting on the CW on Oct. 12, the sixth season of Arrow is a production of Bonanza Productions starring Stephen Amell, Katie Cassidy, Colin Donnell, David Ramsey, Willa Holland, Susanna Thompson, Paul Blackthorne, Emily Bett Rickards, Colton Haynes, Manu Bennett, John Barrowman, Echo Kellum and Josh Segarra.