Guest Stars David Cross voices Prince Nebulon David Cross voices Radio Voice Co Starring Brandon Johnson voices Mr. Goldenfold Kari Wahlgren voices Jessica Maurice LaMarche voices Alien #2 Maurice LaMarche voices Paramedic Kari Wahlgren voices Cynthia Kari Wahlgren voices Hot Woman Dan Harmon voices Mr. Marklevitz Dan Harmon voices Kevin Brandon Johnson voices Black Mailman Ryan Ridley voices Alien #1 Ryan Ridley voices Student #1