Justin Roiland Morty, Rick Voice, Executive Producer Sarah Chalke Beth Voice Spencer Grammer Summer Voice Chris Parnell Jerry Voice Stephen Colbert Zeep Guest Voice Alan Tudyk Chris Guest Voice Will Jennings Hunter Guest Voice Maurice LaMarche Miniverse Mayor Guest Voice Michael McCafferty Microverse Mayor Guest Voice Kari Wahlgren Rick's Computer Guest Voice Gary Anthony Williams Business Alien Guest Voice Nathan Fielder Kyle Guest Voice Dan Harmon Executive Producer