Gemma Whelan and Liam Cunningham Sail Into ‘Game of Thrones’

Two more pivotal roles are filled for the second season of HBO's hit series.

Blair Marnellby Blair Marnell

While "Game of Thrones" is unlikely to return before the spring of 2012, two more fan favorite characters have recently been cast in the series.

According to Entertainment Weekly, Gemma Whelan has been signed to portray Yara Greyjoy, the older sister of Theon Greyjoy (Alfie Allen). In the original "A Song of Ice and Fire" novel series, Yara's first name is actually Asha; but the producers of the "Game of Thrones" TV series presumably changed her name to avoid confusion with Osha (Natalia Tena).

In the books, Yara is a skilled warrior who favors axes (like Shagga!) and she is also the commander of her own ship. Prior to this series, Whelan was best known as a comedian, with parts in "Gulliver’s Travels" and "The Wolfman."

During the week of Comic-Con, Entertainment Weekly also revealed that Liam Cunningham has been cast as Davos Seaworth, a former smuggler turned knight and adviser to Stannis Baratheon.

Cunningham seems to have quite a history of acting in fantasy roles, including appearances in "Clash of the Titans," "First Knight," "The Mummy: Tomb of the Dragon" and even the recently canceled "Camelot" series that aired on Starz. He also had a leading role on the BBC sci-fi series, "Outcasts."

The other major additions to the cast of "Game of Thrones" include the previously announced Stephen Dillane as Stannis and Carice van Houten as Melisandre, with Natalie Dormer as Margaery Tyrell, Oliver Ford Davies as Maester Cressen and Gwendoline Christie as Brienne.

The second season of "Game of Thrones" is currently in production in Belfast.

What do you think about the latest additions to the "Game of Thrones" cast? Let us know in the comment section below!