Viserys Targaryen is a fictional character from the book series "A Song of Ice and Fire" by George R.R. Martin and its television adaptation, Game of Thrones. He is a member of the Targaryen dynasty, known for their dragons and distinctive silver hair. Viserys is the younger brother of Daenerys Targaryen and is obsessed with reclaiming the Iron Throne, which he believes is his birthright. Throughout the story, Viserys is portrayed as ambitious but often cruel and arrogant. His desire for power leads him to manipulate those around him, including his sister Daenerys. His character serves as a representation of the destructive nature of unchecked ambition and entitlement within the context of the struggle for power in the Seven Kingdoms.