Halley Feiffer is a New York-based writer and actress. Her full-length plays include I'M GONNA PRAY FOR YOU SO HARD (World Premiere Atlantic Theater Company ― January 2015, dir. Trip Cullman), HOW TO MAKE FRIENDS AND THEN KILL THEM (World Premiere Rattlestick Playwrights Theatre ― 2014, dir. Kip Fagan), SIDNEY AND LAURA, and A FUNNY THING HAPPENED ON THE WAY TO THE GYNECOLOGIC ONCOLOGY UNIT AT MEMORIAL SLOAN-KETTERING CANCER CENTER. She is currently a writer on the Starz series THE ONE PERCENT. Her plays have been produced, commissioned and developed by Manhattan Theatre Club, Second Stage, New York Theatre Workshop, LAByrinth Theater Company, The O’Neill, The Orchard Project, Berkshire Theatre Group, Naked Angels, Cape Cod Theatre Project, SPACE on Ryder Farm, Keen Company, Partial Comfort Productions and the Amoralists. She is currently working on a stage adaption of THE BOY KINGS, Kate Losse's memoir about working at Facebook during its rising year. Halley is an alumna of terraNOVA’s Groundbreakers Playwrights’ Group, a former resident writer for Blue Man Group, former Playwright in Residence at Stella Adler Studio and a winner of the Young Playwrights Competition and the Lotos Foundation Prize. She is currently under commission by Manhattan Theatre Club/The Sloan Foundation, Jen Hoguet Productions and Playwrights Horizons. Her work is published by Dramatists Play Service, Overlook Press, Vintage Books, Applause Books, and Smith & Kraus. Halley co-wrote and starred in the 2013 film HE'S WAY MORE FAMOUS THAN YOU, and co-created and stars in the web series WHAT'S YOUR EMERGENCY for Stage17.tv (both directed by Michael Urie). As an actress, she has appeared in Jon Robin Baitz’ THE SUBSTANCE OF FIRE (Second Stage), Ethan Coen's WOMEN OR NOTHING (Atlantic, dir. David Cromer), Kenneth Lonergan’s MEDIEVAL PLAY (Signature, dir. Kenneth Lonergan), the Broadway revival of John Guare’s THE HOUSE OF BLUE LEAVES (dir. David Cromer), Kim Rosenstock’s TIGERS BE STILL (Roundabout; Drama League Nom., dir. Sam Gold), HBO’s BORED TO DEATH and MILDRED PIERCE, and the films THE SQUID AND THE WHALE, MARGOT AT THE WEDDING, and GENTLEMEN BRONCOS. She holds a BA from Wesleyan University.