Click now! Deadpool 2's Domino Actress Cast In The New "JOKER" Film Alongside Joaquin Phoenix Read the full article on AICN Hola Dannie aqui, An update came in that actress Zazie Beetz who portrayed the obscenely lucky character of Domino in Marvel's "DEADPOOL 2" as well as being a star of the impressive television series "ATLANTA" has been cast in the new "JOKER" film. Which friggin' Joker film you may ask? The "JOKER" film that I believe will leave us all with big smiles on our faces, the one with Joaquin Phoenix.