1648 quotes and counting! It was written by showrunners and executive producers David Benioff and D. B. Weiss and directed by Alex Graves, his directorial debut for the series. My watch is ended. © Game of Thrones Quote 2020. "And Now His Watch Is Ended" is the fourth episode of the third season of HBO's fantasy television series Game of Thrones, and the 24th episode of the series.