Special Guest Stars Steven Spielberg as Himself (Director / Producer) Christopher Nolan as Himself (Director / Producer) Arnold Schwarzenegger as Himself (Actor) Guest Stars Amy Nicholson as Herself (Film Critic / Host - The Canon) Gary K. Wolfe as Himself (Author - How Great Science Fiction Works) Lisa Yaszek as Herself (Professor of Science Fiction Studies - Georgia Tech) Matt Singer as Himself (Managing Editor / Film Critic - Screencrush) Adam Rutherford as Himself (Science Journalist - BBC Radio 4) Peter Capaldi as Himself (Actor - Doctor Who) Annalee Newitz as Herself (Senior Tech Culture Editor - ARS Tecnica) Bruce Willis as Himself (Actor - Looper) Joseph Gordon-Levitt as Himself (Actor - Looper) David Gerrold as Himself (Writer - Star Trek / Babylon 5) Jonathan Allen Lethem as Himself (Author / Editor - Selected Stories of Philip K. Dick) Jeff Goldblum as Himself (Actor - Jurassic Park / The Fly) Keanu Reeves as Himself (Actor - Bill and Ted's Excellent Adventure) James Gleick as Himself (Author - Time Travel: A History) Peter Spierig as Himself (Director - Predestination) Michael Spierig as Himself (Director - Predestination) Andy Weir as Himself (SF Author - The Martian) Alex Winter as Himself (Actor - Bill and Ted's Excellent Adventure) Christopher Lloyd as Himself (Actor - Back to The Future) Jonathan Nolan as Himself (Screenwriter - Interstellar) John Lithgow as Himself (Actor - Interstellar) Michael Biehn as Himself (Actor - The Terminator) Shane Carruth as Himself (Actor / Director - Primer) Danny Rubin as Himself (Screenwriter - Groundhog Day) Ed Solomon as Himself (Screenwriter - Bill and Ted's Excellent Adventure) Bob Gale as Himself (Screenwriter - Back to the Future) Sylvester James Gates Jr. as Himself (Ford Foundation Professor of Physics - Brown University) Simon Finlay Wells as Himself (Director - The Time Machine (2002))
