Guest Stars Andrew Rannells voices Matthew MacDell Richard Kind voices Marty Glouberman Paula Pell voices Barbara Glouberman Chloe Fineman voices Leah Birch Jon Daly voices Judd Birch Seth Morris voices Greg Glaser Joe Wengert voices Lump Humpman David Thewlis voices Lionel St. Swithens Maria Bamford voices Tito Taylor Thomas Chris O'Dowd voices Flanny O'Lympic Jenny Slate voices Caitlin Grafton Andy Daly voices Dr. Wendy Engle Jon Daly voices Pumbaa Chloe Fineman voices Jourdan Ayden Mayeri voices Gabrielle Maria Bamford voices Epididymitis Joe Wengert voices Andrew's Left Nut