"House of the Dragon": The "Game of Thrones" Prequel Has a Full Cast

Chosen by the lords of Westeros to succeed the Old King, Jaehaerys Targaryen, at the Great Council at Harrenhal, Viserys I (Paddy Considine) is a warm, kind, and decent man who only wishes to carry on his grandfather's legacy. But we all know good men do not necessarily make for great kings. Fans of "Game of Thrones" remember that Viserys I ruled over Westeros for nearly 100 years after Aegon's Conquest, and his children, Rhaenyra and Aegon II, ultimately fought a civil war over his throne that became known as the Dance of the Dragons.