Michael Longfellow (from left), Heidi Gardner and Devon Walker are among the cast members leaving Saturday Night Live before its 51st season. “I wanted people coming back and being part [of the 50th season],” he said, in his first interview since the season ended. Heidi GardnerAs the longest-running female member of the current cast, Gardner was one of the show’s most recognizable stars. Gardner quickly became a fan favorite for her original, over-the-top characters on Weekend Update. Longfellow was promoted to the main cast at the start of the 50th season, after two years as a featured player.