VIDEO: ONCE UPON A TIME's Colin O'Donoghue and Jennifer Morrison Chat Season 4 Romance

By: TV News Desk Sep. 26, 2014

ABC's ONCE UPON A TIME Season 4 debuts this Sunday night, and ETOnline caught up with two of the series' stars -- Jennifer Morrison (Emma) and Colin O'Donoghue (Hook) -- to talk about their growing romance and an upcoming "date" (involving a snow monster?!) this season. Watch the interview below!

"Once Upon a Time" stars Ginnifer Goodwin as Snow White/Mary Margaret, Jennifer Morrison as Emma Swan, Lana Parrilla as the Evil Queen/Regina, Josh Dallas as Prince Charming/David Nolan, Emilie de Ravin as Belle, Colin O'Donoghue as Hook, Jared S. Gilmore as Henry, Michael Socha as Will Scarlet and Robert Carlyle as Rumplestiltskin/Mr. Gold.

Guest starring are Lee Arenberg as Leroy/Grumpy, Faustino Di Bauda as Walter/Sleepy, Giancarlo Esposito as Sidney/Magic Mirror, Sean Maguire as Robin Hood, Georgina Haig as Elsa, Elizabeth Lail as Anna, Scott Michael Foster as Kristoff, Oliver Rice as noble man, Pascale Hutton as regal woman, Raphael Alejandro as Roland, Jason Burkart as Little John, Christie Laing as Maid Marian and John Rhys-Davies as Grand Pabbie.

VIDEO: ONCE UPON A TIME's Colin O'Donoghue and Jennifer Morrison Chat Season 4 Romance

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