For “The Walking Dead’s” Scott Gimple, a story needs sadness to make the happiness real

Scott Gimple was the showrunner for five seasons of “The Walking Dead” before becoming chief content officer for the entire franchise. And in that time, the series has become a content universe, with a spinoff series, video games and both a movie and another spinoff in the works. Kai Ryssdal interviewed Gimple in his Burbank office, not too far from a life-sized statue of Han Solo frozen in carbonite. They talked horror what it’s like to direct the storyline for an entire franchise. And Gimple made a passionate pitch for Ryssdal to give the series a shot.