Harley Quinn joins forces with a singer, an assassin and a police detective to help a young girl who had a hit placed on her after she stole a rare diamond from a crime lord.

Top Cast

Margot RobbieHarley Quinn

Rosie PerezRenee Montoya

Mary Elizabeth WinsteadHelena Bertinelli / Huntress

Jurnee SmollettDinah Lance / Black Canary

Ewan McGregorRoman Sionis

Ella Jay BascoCassandra Cain

Chris MessinaVictor Zsasz

Ali WongEllen Yee