John Oliver Host, Executive Producer David Kaye Narrator Adam Newman Gecko Guest Star Julia Louis-Dreyfus Guest Tom Hanks Guest Kathy Griffin Guest Fareed Zakaria Guest Jane Goodall Guest Right Said Fred Music Performer Keith Alexander Guest Bill Nye Guest Richard Toth George Washington Guest Star Kathryn Erbe Detective Alexandra Eames Guest Star Patrick Stewart Guest Joe List Edamame Guest Star Seth Meyers Guest Ryan Cooper Mr. Diet Coke Guest Star Sylvia Ward Alison Grimes Guest Star John Fiore Detective Tony Profaci Guest Star Chris Henry Coffey Detective Ted Hickman Guest Star Tim Carvell Executive Producer