Natasha Lyonne returns as Nicky Nichols in Orange Is the New Black season six. The character is no stranger to maximum security, she spent some time there after getting busted with drugs in the prison.
Kate Mulgrew returns as Red. When viewers last saw her in season five, she was being tortured—scalped—by Piscatella (Brad William Henke).
Gloria, played by Selenis Leyva, worked to free the captured prison guards in hopes of reducing her sentence and going home to her family.
After sparking the events of the riot, Jessica Pimentel's Maria Ruiz took an active role in torturing the guards. The season ended with her taking credit for Gloria's actions and attempts to free the guards and quell the riot.
Danielle Brooks' Taystee Jefferson played a big role in the riots. She negotiated with the prison administration for changes to Litchfield...before everything went bad.
Adrienne C. Moore returns as Black Cindy, aka Tovah, in season six of OITNB.
Taylor Schilling returns as Piper Chapman. Piper was just weeks away from release before the riot. Now? Will she be locked up for good?