Special Guest Stars Jonathan Banks as Professor Buzz Hickey Guest Stars Erik Charles Nielsen as Garrett Lambert John Oliver as Professor Ian Duncan Charley Koontz as Fat Neil Brie Larson as Rachel Jerry Minor as Jerry Eddie Pepitone as Crazy Schmidt Nathan Fillion as Bob Waite Paget Brewster as Debra Chambers Robert Patrick as Waldron Kumail Nanjiani as Lapari Katie LeClerc as Carol Co Starring Miguel Izaguirre as Carlo