Season Four

Season Four is the fourth season of ABC's Once Upon a Time. It was announced on May 8, 2014. Filming began on July 9, 2014 and lasted until April 2, 2015.

Season Four premiered on September 28, 2014 with "A Tale of Two Sisters", and will end with "Operation Mongoose Part 1" immediately followed by "Operation Mongoose Part 2" on May 10, 2015.

Potential Storyline Information
The following will be addressed/featured:
 * Why Prince Charming and Snow White don't seem to know much about the Dark Curse in "Pilot" when they actually learned about it earlier.
 * More of Storybrooke before Emma arrived and broke the curse.
 * More information about page 23.
 * Hook's renewed interest in plotting revenge against Mr. Gold.
 * Characters coming in and out of Storybrooke.
 * Some new worlds and some old worlds.
 * What Isaac can do and cannot do as the Author.

New Characters

 * Anna
 * Gerda
 * Grand Pabbie
 * Kristoff
 * Sven
 * Bo Peep/Bo Peep
 * Ingrid
 * Hans
 * Will Scarlet
 * The Apprentice/The Apprentice
 * Lily
 * Colette
 * Duke
 * Helga
 * Cruella De Vil
 * Ursula


 * King Stefan
 * Poseidon
 * Isaac
 * Will Scarlet
 * Madeline
 * The Sorcerer

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

 * Lee Arenberg as Grumpy/Leroy
 * Christie Laing as Marian
 * Sean Maguire as Robin Hood/Robin Hood
 * Giancarlo Esposito as Magic Mirror/Sidney Glass
 * Beverley Elliott as Granny/Granny
 * Gabrielle Rose as Ruth
 * Raphael Sbarge as Jiminy Cricket/Archie Hopper
 * Brad Dourif as Zoso
 * Abby Ross as young Emma
 * Sarah Bolger as Aurora
 * Jessy Schram as Cinderella/Ashley Boyd


 * Keegan Connor Tracy as Blue Fairy/Mother Superior
 * Charles Mesure as Black Beard
 * Kristin Bauer van Straten as Maleficent/Maleficent
 * Tony Amendola as Geppetto/Marco
 * Jakob Davies as Pinocchio
 * Eion Bailey as August Booth
 * JoAnna Garcia Swisher as Ariel
 * Christopher Gauthier as William Smee/William Smee
 * Wil Traval as Sheriff of Nottingham/Keith
 * Rebecca Mader as Wicked Witch of the West/Zelena
 * Barbara Hershey as Cora
 * Tony Perez as Valet

Co-Starring

 * Raphael Alejandro as Roland/Roland
 * Faustino Di Bauda as Sleepy/Walter
 * Jason Burkart as Little John/Little John
 * Michael Coleman as Happy/Happy
 * Eric Keenleyside as Maurice/Moe French
 * David-Paul Grove as Doc/Doc
 * Gabe Khouth as Sneezy/Mr. Clark
 * Jeffrey Kaiser as Dopey/Dopey
 * Mig Macario as Bashful/Bashful
 * Ingrid Torrance as Severe Nurse

Starring

 * Michael Socha as Will Scarlet/Will Scarlet

Guest Starring

 * Georgina Haig as Elsa
 * Pascale Hutton as Gerda
 * Elizabeth Lail as Anna
 * Scott Michael Foster as Kristoff
 * John Rhys-Davies as Grand Pabbie
 * Elizabeth Mitchell as Ingrid
 * Robin Weigert as Bo Peep/Bo Peep
 * Tyler Jacob Moore as Hans
 * Timothy Webber as The Apprentice/The Apprentice
 * Nicole Munoz as young Lily
 * Frances O'Connor as Colette
 * Sally Pressman as Helga


 * Jonathan Runyon as Duke
 * Brighton Sharbino as young Ingrid
 * Merrin Dungey as Ursula
 * Victoria Smurfit as Cruella De Vil
 * Sebastian Roché as King Stefan
 * Tiffany Boone as young Ursula
 * Ernie Hudson as Poseidon
 * Patrick Fischler as Isaac
 * Anna Galvin as Madeline
 * Agnes Bruckner as Lily

Lineup Changes

 * Michael Raymond-James is no longer billed as "Starring".
 * Christie Laing is now billed as "guest starring".
 * Abby Ross is now billed as "guest starring".