In the years since it debuted in 1975, Saturday Night Live has generated its fair share of memorable live TV events, from contentious "SNL" sketches to iconic quips ("More cowbell!"). However, we don't have as clear memories of some of its cast members' tenures. Some only appeared on the show for one season (or less). Others' SNL runs were eclipsed by later accomplishments. Many said it was both. Continue reading to learn about 20 former SNL cast members you might not have known existed.