Explained

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Nick Kroll (Himself - Narrator), Eric Weiskott (Himself - Professor; Medieval English Literature), Geoff Nunberg (Himself - Linguist), Jason Parham (Himself - Senior Writer; Wired), Penny Speckter (Herself - Wife of Interrobang Inventor), Deborah Tannen (Herself - Linguist), Muhammad Ali (Himself), The Beatles (Themselves), Brenda Buttner (Herself), Winston Churchill (Himself), Ernest Hemingway (Himself), Megyn Kelly (Herself), Roy Lichtenstein (Himself), Herman Melville (Himself), Martin Speckter (Himself - Inventor of the Interrobang), Donald Trump (Himself)

Joe Posner

Cory Popp