Season 4
Once Upon a Time Season 4

No. of episodes


Original release

September 28, 2014 – May 10, 2015


A Tale of Two Sisters


Operation Mongoose


Season 3


Season 5

The fourth season of the ABC fantasy-drama Once Upon a Time was announced on May 8, 2014. On May 13, 2014, it was revealed that the season would be split into two parts, the first half airing during autumn 2014, and the second half during spring 2015 of the 2014–15 television season. It premiered on September 28, 2014, and concluded on May 10, 2015.

On April 20, 2014, it was confirmed that former Once Upon a Time in Wonderland star Michael Socha would be a series regular as his character Will Scarlet / the Knave of Hearts.

New characters introduced to the series include the main antagonists for the two volumes, the Snow Queen, and the Queens of Darkness (a triad of villains including returning character Maleficent, and new characters Cruella de Vil and Ursula). In addition, Elsa, Princess Anna, Kristoff, the Sorcerer's Apprentice, Little Bo Peep, and Poseidon are introduced to the series.


Elsa arrives in Storybrooke, hoping to find her sister Anna. However, things get complicated with the appearance of the Snow Queen, who seems to know both Elsa and Emma. The Snow Queen is later revealed to Elsa's aunt and one of Emma's foster mothers; she plans on making them her new sisters, despite their obvious hatred of her. The Snow Queen enacts the spell of Shattered Sight to make everyone kill each other; however, she is given a letter written by Elsa and Anna's mother that shows how much she was loved. Seeing she let herself become a monster, the Snow Queen ends the spell by killing herself. At the same time, Mr. Gold plots to free himself of the Dark One dagger's control by crushing Hook's heart in a ceremony; however, Belle uses the dagger to force Gold to leave Storybrooke. Gold reunites the Queens of Darkness (Ursula, Cruella De Vil and Maleficent) to find the Author responsible for writing their stories and force him to give them happy endings. Emma also learns that her old friend Lily is Maleficent's daughter, helping the two reunite. Allying with the Author, Mr. Gold traps everyone in a new story called Heroes and Villains, where the roles are reversed. Henry frees everyone, becoming the new Author in the process. Things get worse as the darkness in Gold escapes, being revealed to be the true Dark One. To save Regina from becoming possessed by it, Emma forces the Darkness to take her instead.

Cast and characters



  • Sean Maguire as Robin Hood
  • Georgina Haig as Elsa
  • Kristin Bauer van Straten as Maleficent
  • Elizabeth Lail as Anna
  • Elizabeth Mitchell as Ingrid / Snow Queen / Sarah Fisher
  • Scott Michael Foster as Kristoff
  • Lee Arenberg as Dreamy / Grumpy / Leroy
  • Beverley Elliott as Widow Lucas / Granny
  • Patrick Fischler as Isaac Heller / Author
  • Timothy Webber as the Sorcerer's Apprentice
  • Victoria Smurfit as Cruella De Vil / Cruella Feinberg
  • Merrin Dungey as Ursula, the Sea Witch
  • Faustino Di Bauda as Sleepy / Walter
  • Christie Laing as Marian
  • Rebecca Mader as Zelena / Wicked Witch of the West
  • Raphael Alejandro as Roland
  • Eion Bailey as Pinocchio / August Booth
  • Michael Coleman as Happy

  • Gabe Khouth as Sneezy / Tom Clark
  • Abby Ross as Young Emma Swan
  • Keegan Connor Tracy as Blue Fairy / Mother Superior
  • John Rhys-Davies as Grand Pabbie
  • Agnes Bruckner as Lilith "Lily" Page
  • Jason Burkart as Little John
  • David Paul Grove as Doc
  • Jeffrey Kaiser as Dopey
  • Mig Macario as Bashful
  • Tony Amendola as Geppetto / Marco
  • Sarah Bolger as Aurora
  • Jakob Davies as young Pinocchio
  • Giancarlo Esposito as Magic Mirror / Sidney Glass
  • JoAnna Garcia Swisher as Ariel
  • Christopher Gauthier|Chris Gauthier]] as William Smee
  • Barbara Hershey as Cora Mills / Queen of Hearts
  • Tony Perez as Prince Henry Mills
  • Raphael Sbarge as Jiminy Cricket / Dr. Archie Hopper


  • Pascale Hutton as Gerda, Queen of Arendelle
  • Tyler Jacob Moore as Prince Hans
  • Nils Hognestad as Franz
  • Marcus Rosner as Jurgen
  • Sally Pressman as Helga
  • Nicole Muñoz as Young Lily
  • Charles Mesure as Blackbeard
  • Wil Traval as Sheriff of Nottingham / Keith
  • Oliver Rice as King of Arendelle
  • Robin Weigert as Bo Peep
  • Gabrielle Rose as Ruth
  • Brad Dourif as Zoso
  • Eric Keenleyside as Maurice / Moe French
  • Frances O'Connor as Colette
  • Jessy Schram as Cinderella / Ashley Boyd
  • Darcey Johnson as Oaken
  • Brighton Sharbino as Young Ingrid
  • Ava Marie Telek as Young Gerda
  • Bailey Herbert as Young Helga
  • Jonathan Runyon as a younger Duke of Weselton
  • Rebecca Wisocky as Madam Faustina
  • Sebastian Roché as King Stefan
  • Ernie Hudson as Poseidon
  • Tiffany Boone as Young Ursula
  • Jonathan Adams voices The Sorcerer / Merlin

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