Below is a TV Guide article about it.
SourceOnce Upon a Time has landed another Lost alum.
Emilie de Ravin, who played Australian castaway Claire on the ABC island mystery series, has been cast as Belle, as in Beauty and the Beast's Belle, TVGuide.com has learned exclusively.
Details of her role are scarce, but we hear Once's Belle will have a connection to Rumplestiltskin (Robert Carlyle). No word on whether the titular Beast will appear, but Gaston is slated to pop up as well.
The 29-year-old Roswell alum has starred in such films as Remember Me, Public Enemies and Brick. She will first appear in Episode 12, slated to air early next year.