DAVID AGREES TO TELL KATHRYN ABOUT HIS RELATIONSHIP WITH MARY MARGARET AND END HIS LOVELESS MARRIAGE, AND PRINCE CHARMING AIDS ABIGAIL ON A DANGEROUS MISSION TO RECOVER SOMETHING SPECIAL THAT WAS LOST TO HER, ON ABC'S "ONCE UPON A TIME"

Alan Dale ("Lost") Guest Stars as King George

"What Happened to Frederick" - With their love for each other growing stronger, David finally agrees to tell Kathryn about his relationship with Mary Margaret and put an end to his loveless marriage. Meanwhile, in the fairytale land that was, while runaway groom Prince Charming searches for Snow White, he agrees to aid Abigail on a dangerous mission to recover something precious that was lost to her, on "Once Upon a Time," SUNDAY, FEBRUARY 19 (8:00-9:00 p.m., ET) on the ABC Television Network.

"Once Upon a Time" stars Ginnifer Goodwin as Snow White/Mary Margaret, Jennifer Morrison as Emma Swan, Robert Carlyle as Rumplestiltskin/Mr. Gold, Lana Parrilla as Evil Queen/Regina, Jared Gilmore as Henry Mills, Josh Dallas as Prince Charming/David and Raphael Sbarge as Jiminy Cricket/Archie Hopper.

Guest starring are Anastasia Griffith as Kathryn/Abigail, Meghan Ory as Ruby/Red Riding Hood, Alan Dale as King George, Beverley Elliott as Granny, Eion Bailey as stranger/August W. Booth, Aria Pullman as Siren and Greyston Holt as gym teacher/Frederick.

"What Happened to Frederick" was written by David H. Goodman and directed by Dean White.

"Once Upon a Time" is broadcast in 720 Progressive (720P), ABC's selected HDTV format with a 5.1 channel surround sound. A TV parental guideline will be assigned closer to the airdate.

For more information on "Once Upon a Time," visit ABC.com/Once