Season: FourHow It Went Down: Buffy (Sarah Michelle Gellar) and Willow (Alyson Hannigan) ended up as roomies at Sunnydale University, where our slayer had a hard time adjusting at first, but it was nothing a new love interest, TA/Initiative agent Riley (Marc Blucas), couldn't solve. Xander (Nicholas Brendon) took on a series of odd jobs as he lived in his mother's basement, while former baddie Spike (James Marsters) slowly became a member of the Scooby gang. Buffy dropped out of college in season five after the death of her mother. Grade: B. Though season four's big bads (The Initiative and Adam) were a bit of a letdown after the Mayor and Faith (Eliza Dushku) in season three, we quite enjoyed seeing our trio grow up (and slightly apart) post-high school/hellmouth years.