Watch this Game of Thrones featurette entitled “Religions of Westeros,” in which George R.R. Martin, Benioff and Weiss explain the different religions in the series.

In the video we are introduced to the different gods and the characters who worship them, including Catelyn’s seven gods, the Starks’ old gods and Melisandre’s god of light. Martin also gives a great explanation about how the different religions came about.