“Saturday Night Live” announced its newest cast members on Tuesday, and, well, we won’t keep you waiting. They are Chris Redd,Heidi Gardner and Luke Null. The three additions to the show will replace departees Bobby Moynihan, Vanessa Bayer and Sasheer Zamata. According to Vulture, the rest of the “SNL” crew is returning for Season 43, which premieres on NBC this Saturday.