"Game of Thrones" actor Aidan Gillen revealed the show's plot would extend past the "A Song of Fire And Ice" saga.

During an interview with News.com.au, the actor confirmed he would be returning to Northern Ireland at the end of July. However, book readers will no longer have the upper hand when it comes to show spoilers in season five.

"It's an adventure everyone is on - the audience, the cast. Not knowing where it's going, that's good," Gillen said. "People playing end games could work ... but if you don't know what the end game is, maybe you won't play the obvious thing."

Book readers will also be disappointed to find out zombie Catelyn Stark, better known as Lady Stoneheart, won't be appearing the HBO series. Actress Michelle Fairley confirmed she will not be returning to the series during an interview with Entertainment Weekly.

"Yeah, the character's dead. She's dead," Fairely said. "You respect the writers' decision. I knew the arc, and that was it. They can't stick to the books 100 percent. It's impossible-they only have 10 hours per season. They have got to keep it dramatic and exciting, and extraneous stuff along the way gets lost in order to maintain the quality of brilliant show."

However, Catelyn's youngest daughter Arya Stark may make up for Lady Stoneheart's absence. Maisie Williams spoke to The Wall Street Journal about the power in the Braavosi coin she held in the final episode of season four.

"I think she's overwhelmed by the power she has over the captain when she unveils this coin," Williams told WSJ. "Automatically, she knows that's who she can be for the rest of her life. When she gets on the ship, the final moment for her, she looks over her past life, this world she's been in and spat out the other side, and she turns around and forgets all of that."

Arya has official set sail to Braavos and may encounter a familiar face to realize her destiny. Click here to find out what could happen to Arya Stark when her ship docks at Braavos.