Mother

"Episode 420" is the twentieth episode of Season Four of ABC's Once Upon a Time. It was written by Jane Espenson, and directed by Ron Underwood. It will be the eighty-sixth episode of the series overall.

Starring

 * Ginnifer Goodwin as Snow White/Mary Margaret Blanchard
 * Jennifer Morrison as Emma Swan
 * Lana Parrilla as Evil Queen/Regina Mills
 * Josh Dallas as Prince Charming/David Nolan
 * Emilie de Ravin as Belle/Belle French
 * Colin O'Donoghue as Hook
 * Jared S. Gilmore as Henry Mills
 * Robert Carlyle as Rumplestiltskin/Mr. Gold

Guest Starring

 * Kristin Bauer van Straten as Maleficent/Maleficent
 * Agnes Bruckner as Unknown
 * Sean Maguire as Robin Hood/Robin Hood
 * Rebecca Mader as Wicked Witch of the West/Zelena
 * Raphael Alejandro as Roland/Roland