HBO has brought online a teaser trailer for their upcoming third season of "Games of Thrones." Check it out in the player below and catch the new season on HBO beginning March 31.

Based on the novels of George R.R. Martin, the third season is said to adapt events from "A Storm of Swords" and will include quite a few new and returning characters.

The cast of season two included Emmy and Golden Globe winner Peter Dinklage, Michelle Fairley, Lena Headey, Emilia Clarke, Nikolaj Coster-Waldau, Aidan Gillen, Iain Glen, Kit Harington, Richard Madden, Maisie Williams, Isaac Hempstead Wright, Sophie Turner, Jack Gleeson and Alfie Allen.

The series is executive produced by David Benioff, D.B. Weiss, Carolyn Strauss, Frank Doelger with co-executive producers George R.R. Martin, Vanessa Taylor, Alan Taylor, Guymon Casady, Vince Gerardis and Bernadette Caulfield producing.