<P> About two dozen wigs are used for the actresses . Made of human hair and up to 2 feet (61 cm) in length, they cost up to $7,000 each and are washed and styled like real hair . Applying the wigs is time - consuming; Emilia Clarke, for example, requires about two hours to style her brunette hair with a platinum - blonde wig and braids . Other actors, such as Jack Gleeson and Sophie Turner, receive frequent hair coloring . For characters such as Daenerys (Clarke) and her Dothraki, their hair, wigs and costumes are processed to appear as if they have not been washed for weeks . </P> <P> For the first three seasons, Paul Engelen was Game of Thrones' main makeup designer and prosthetic makeup artist with Melissa Lackersteen, Conor O'Sullivan and Rob Trenton . At the beginning of the fourth season Engelen's team was replaced by Jane Walker and her crew, composed of Ann McEwan and Barrie and Sarah Gower . </P> <P> For the series' large number of visual effects, HBO hired British - based BlueBolt and Irish - based Screen Scene for season one . Most of the environment builds were done as 2.5 D projections, giving viewers perspective while keeping the programming from being overwhelming . In 2011, the season - one finale, "Fire and Blood", was nominated for a Primetime Emmy Award for Outstanding Special Visual Effects . </P> <P> Because the effects became more complex in subsequent seasons (including CGI creatures, fire, and water), German - based Pixomondo became the lead visual - effects producer; nine of its twelve facilities contributed to the project for season two, with Stuttgart the lead . Scenes were also produced by British - based Peanut FX, Canadian - based Spin VFX, and U.S. - based Gradient Effects . "Valar Morghulis" and "Valar Dohaeris" earned Pixomondo Primetime Emmy Awards for Outstanding Special Visual Effects in 2012 and 2013, respectively . </P>

What is the budget for an episode of game of thrones