Laura Roslin is a fictional character in the reimagined Battlestar Galactica series. Played by Mary McDonnell, she is the President of the colonies and a key character throughout the series. The chara

"The Oath" is the thirteenth episode in the fourth season of the reimagined Battlestar Galactica. It aired on television in the United States and Canada on January 30, 2009 and in the UK on Sky One on