Brent Lang Executive Editor of Film and MediaJaime King, Antonio Banderas and Tommy Flanagan have joined the cast of “Banshee,” an action film from director Jon Keeyes.The film follows a freelance assassin, codenamed Banshee (King), who is ambushed by Anthony Greene (Flanagan), a powerful mercenary who killed her father, and who is now seeking to collect a bounty on Caleb (Banderas), her former black ops mentor.