It's Not Easy Being Green

"It's Not Easy Being Green" is the sixteenth episode of Season Three of ABC's Once Upon a Time. It was written by Andrew Chambliss and directed by Mario Van Peebles. It is the sixtieth episode of the series overall, and premiered on April 6, 2014.

Synopsis
With Rumplestiltskin as her slave, Zelena challenges Regina to a fight to the death and shocks the Evil Queen with the reveal of their familial connection, and the town lays Neal to rest. Meanwhile, back in the past in the land of Oz, a jealous Zelena asks the Wizard to send her to Enchanted Forest after discovering that she has a sister, Regina, and that Rumplestiltskin is training her to become a powerful force to be reckoned with.

Starring

 * Ginnifer Goodwin as Mary Margaret Blanchard
 * Jennifer Morrison as Emma Swan
 * Lana Parrilla as the Evil Queen/Regina Mills
 * Josh Dallas as David Nolan
 * Emilie de Ravin as Belle
 * Colin O'Donoghue as Hook
 * Michael Raymond-James (Credit only)
 * Jared S. Gilmore as Henry Mills
 * Robert Carlyle as Rumplestiltskin/Mr. Gold

Guest Starring

 * Beverley Elliott as Granny
 * Christopher Gorham as Walsh
 * Rebecca Mader as Wicked Witch of the West/Zelena
 * Sean Maguire as Robin Hood
 * Keegan Connor Tracy as Mother Superior
 * Adrian Hough as Woodsman
 * Rose McIver as Tinker Bell

Co-Starring

 * Jack Di Blasio as Lost Boy #1
 * David-Paul Grove as Doc
 * Gabe Khouth as Mr. Clark
 * Maria Marlow as Woodcutter's Wife

Uncredited

 * CGI Flying Monkey
 * Unknown as Cora
 * Unknown baby as Wicked Witch of the West

Production Notes

 * The title card features the Wizard's four geysers of fire.

Event Chronology

 * The Enchanted Forest flashbacks occur after "We Are Both" and before "The Doctor".
 * The Land Without Magic events occur after "Quiet Minds".
 * The Oz flashbacks occur before "The Doctor".

Disney

 * The Wizard's figure looks like James Franco's from Oz the Great and Powerful.
 * The title of the episode comes from a song, by Kermit the Frog on Sesame Street.

Fairytales and Folklore

 * This episode is a rendition of the The Wonderful Wizard of Oz story, focusing on the origins of the Wicked Witch of the West.
 * Also included are the Wizard and the Flying Monkeys from the same story.
 * This episode also features the Evil Queen from the Snow White fairy tale, Hook from the Peter Pan story as well as the Miller's Daughter and Rumplestiltskin from the Rumplestiltskin fairy tale
 * The Silver Slippers are from the book version of The Wonderful Wizard of Oz.