Justin Roiland Morty, Rick Voice, Executive Producer Sarah Chalke Beth Voice Spencer Grammer Summer Voice Chris Parnell Jerry Voice Keegan-Michael Key Fourth-Dimensional Being Guest Voice Jordan Peele Second Fourth-Dimensional Being Guest Voice Jay Johnston Coldstone Creamery Employee Guest Voice Tom Kenny Hunter Guest Voice Jill Talley Veterinarian Guest Voice Paul F. Tompkins Lawyer Guest Voice Dan Harmon Executive Producer