I've been trying to figure out the actual ages of the main characters based on what is revealed in the show. In the episode, Hard Knox, Ralph proves that his teacher stole Ralph's computer code by showing the bookmarks in the code are actually dates that are significant to Ralph- his birthday: 12/11/2005; Paige's birthday: 4/13/1986; and the day they met Walter: 9/22/2014. Which means Paige was 19 years old when she had Ralph, 28 when she met Walter, 32 when the show ended, and when she is 100, Ralph will be 81.