The Season six credits include Peter Dinklage, Nikolaj Coster-Waldau, Lena Headey, Emilia Clarke, Aidan Gillen, Diana Rigg, Sophie Turner, Maisie Williams and Jonathan Pryce, reported Ace Showbiz.
"I think we're down to our final 13 episodes after this season. We're heading into the final lap," Benioff said.
"That's the guess, though nothing is yet set in stone, but that's what we're looking at."
The season six of "Game of Thrones" will air in India on April 26.