Board Thread:Spoilers!/@comment-4047879-20130814180722

The roles of Liam and Devin are being cast for season 3.

For Once Upon A Time episode 3.05, the guest role of Liam is being cast. He is 35 and British, with dark hair. He grew up an orphan but is now the captain of a Navy ship, and is well-liked and respected by his crew. Also, the potentially recurring role of Devin is being cast. He's 14, has been one of Peter Pan's Lost Boy for many years, and is very competitive.

My guesses, Liam = TLM's Prince Eric, Devin = Rufio

Also this article  says that Eric and Ursula are coming to OUaT!!  