Self - Narrator (62 episodes, 2010-2017)
Self / Self - Cosmologist / Self - Cosmologist, California Institute of Technology / Self - Physicist, California Institute of Technology (6 episodes, 2010-2014)
Self - Theoretical Physicist / Self - Phd., Theoretical Physicist (5 episodes, 2011-2015)
Self / Self - Theoretical Physicist (4 episodes, 2010-2015)
Self - Astrophysicist (4 episodes, 2010-2015)
Self - Theoretical Physicist / Self - Physicist (4 episodes, 2011-2014)
Self - Cosmologist / Self - Physicist, Astrobiologist (3 episodes, 2010-2012)
Self - Physicist / Self - Physicist, Perimeter Inst. for Theoretical Physics, Waterloo, Canada / Self - Theoretical physicist (3 episodes, 2010-2012)
Self / Self - Barnard College / Self - Theoretical Physicist (3 episodes, 2010-2011)
Self - Mathematical Physicist (3 episodes, 2010-2011)
Self - Theoretical Physicist, Oxford University (2 episodes, 2010-2012)
Self - Theoretical Physicist, Princeton University (2 episodes, 2010-2011)
Self - Cognitive Neuroscience Researcher (2 episodes, 2010-2011)
Self - Cosmologist (2 episodes, 2010-2011)
Self - Game Designer (2 episodes, 2010)
Self - Princeton University / Self - Theoretical Astrophysicist (2 episodes, 2010)
Self - MIT / Self - Theoretical Physicist (2 episodes, 2010)
Self - Particle Physicist / Self - Particle Physicist, M.I.T (2 episodes, 2010)
Self - Neuroscientist, Baylor College of Medicine (2 episodes, 2011-2012)
Self - M.D, Scientist (2 episodes, 2012)
Self - Head of Human Dynamics Lab, M.I.T (2 episodes, 2012)
George santiago / Tony Silva (2 episodes, 2015)
Self - Theoretical Physicist (1 episode, 2010)
Self - Physicist (1 episode, 2010)
Self - Physicist, Royal Observatory Edinburgh (1 episode, 2010)
Self - Astrophysicist (1 episode, 2010)
Self - Astronomer (1 episode, 2010)
Self - Astronomer, SETI (1 episode, 2010)
Self - Experimental Physicist (1 episode, 2010)
Self - Physicist, Perimeter Institute (1 episode, 2010)
Self - Particle Physicist (1 episode, 2010)
Self - Physicist and Astrophysicist, Fermilab (1 episode, 2010)
Self - Phd., Physicist (1 episode, 2010)
Self - Biologist (1 episode, 2010)
Self - Atomic Scientist (1 episode, 2010)
Self - Argon National Laboratory, Chicago (1 episode, 2010)
Young 16yo Morgan Freeman (1 episode, 2010)
Self - University College London (1 episode, 2010)
Self - CDMS Project Manager and Fermilab Scientist, Fermilab (1 episode, 2010)
Self - NASA Ames Research Center (1 episode, 2010)
Self - Chemist (1 episode, 2010)
Self - Principal Investigator for NASA's Kepler Mission (1 episode, 2010)
Self - Planetary Scientist (1 episode, 2010)
Young Morgan Freeman (1 episode, 2010)
Self - University of California, Berkeley (1 episode, 2010)
Self - Max Planck Institute (1 episode, 2010)
Self - Phd., Geochemistry (1 episode, 2010)
Self - Experimental Particle Physicist (1 episode, 2010)
Self - Phd., Astronomer, University of California, Berkeley (1 episode, 2010)
Self - Microbiologist (1 episode, 2010)
Self - Geologist (1 episode, 2010)
Self - Senior Astronomer, SETI Institute (1 episode, 2011)
Suzuki Watamura (1 episode, 2011)
Self - Neurosurgeon (1 episode, 2011)
Self - Astrophysicist, MIT, Cambridge (1 episode, 2011)
Self - Biologist (1 episode, 2011)
Self - Professor of Gerontology (1 episode, 2011)
Trouble (1 episode, 2011)
Self (1 episode, 2011)
Self - Institute for Noetic Science (1 episode, 2011)
Self - Physicist (1 episode, 2011)
Self - Anti-Aging Expert (1 episode, 2011)
Self - Theoretical physicist (1 episode, 2011)
Self - Phd., Physicist (1 episode, 2011)
Self - Phd., Biology and Engineering, CalTech (1 episode, 2011)
Self - Geologist (1 episode, 2011)
Self - Cosmologist (1 episode, 2011)
Self - Philosopher and Cognitive Scientist (1 episode, 2011)
Self - Psychiatrist (1 episode, 2011)
Self - M.D., Phd., University of Wisconsin (1 episode, 2011)
Self - Cryobiologist (1 episode, 2011)
Self - Professor of Psychology (1 episode, 2011)
Self - Neuroscientist (1 episode, 2011)
Self - Quantum Physicist (1 episode, 2011)
Self - Atomic physicist, Yale University (1 episode, 2011)
Self - Theoretical Physicist (1 episode, 2011)
Self - Phd., Theoretical Physicist, University of Utrecht (1 episode, 2011)
Self - Wife of Dimitar Sasselov, BFA in Painting (1 episode, 2011)
Self - Cognitive scientist (1 episode, 2011)
Self - Philosopher of Physics (1 episode, 2011)
Self - Quantum Physicist, University of Maryland (1 episode, 2011)
Self - Phd., Theoretical Particle Physicist and Cosmologist, Harvard University (1 episode, 2011)
Self - Global Consciousness Project (1 episode, 2011)
Self - Perimeter Institute (1 episode, 2011)
Self - Astrophysicist (1 episode, 2011)
Self - Phd., Physics and Astronomy (1 episode, 2011)
Self - Director of Radiation Laboratories (1 episode, 2011)
Self - Astronomer, University of New South Wales, Sydney (1 episode, 2011)
Self - University of Chicago (1 episode, 2011)
Self - Kepler Lead Scientist, Harvard (1 episode, 2011)
Self - Phd,. Anesthesiologist, University of Arizona (1 episode, 2011)
Self - Biochemist, MIT, Cambridge (1 episode, 2011)
Self - Paleontologist, Harvard (1 episode, 2011)
Self - String Theorist (1 episode, 2011)
Self - Neurobiologist (1 episode, 2011)
Self - Georgia Institute of Technology (1 episode, 2011)
Self - Tilburg University (1 episode, 2011)
Self - Synthetic Biologist (1 episode, 2011)
Self - Theoretical Physicist, Clemson University (1 episode, 2011)
Self - Theoretical Physicist, Stanford Linear Accelerator, California (1 episode, 2011)
Self - Experimental Physicist, Caltec (1 episode, 2011)
Self - Executive Director of Long Now Foundation (1 episode, 2011)
Self - Astronomer (1 episode, 2011)
Self - Theoretical Physicist and String Theorist (1 episode, 2011)
Self - Experimental Physicist (1 episode, 2011)
Man with Clone (1 episode, 2012)
Self - Neuroscientist (1 episode, 2012)
Self - Astrophysicist (1 episode, 2012)
Self - Physicist, Harvard (1 episode, 2012)
Self - Professor, Intelligent Robotics Laboratory (1 episode, 2012)
Self - Neurottheology (1 episode, 2012)
Self - Neuroscientist, Memory Lab, University of Auckland (1 episode, 2012)
Self - Paleoanthropologist, Wisconsin-Madison University (1 episode, 2012)
Self - Professor of Artificial Intelligence, Lugano, Switzerland (1 episode, 2012)
Self - Neuroscientist, State University of New York (1 episode, 2012)
Self - Experimental Psychologist, Harvard (1 episode, 2012)
Self - Paleontologist, University of Washington, Seattle (1 episode, 2012)
Self - Psychologist (1 episode, 2012)
Self - Experimental Physicist, Oxford University (1 episode, 2012)
Self - Theoretical Physicist (1 episode, 2012)
Self - Cosmologist (1 episode, 2012)
Self - Linguistic Psychologist (1 episode, 2012)
Self - Child Psychologist, University of California, Berkeley (1 episode, 2012)
Self - Computer Engineer, University of Manchester (1 episode, 2012)
Self - Neuroscientist, Washington University School of Medicine (1 episode, 2012)
Self - Comparitive Psychologist (1 episode, 2012)
Self - Patient (1 episode, 2012)
Self - Particle Physicist, Santa Fe Institute (1 episode, 2012)
Self - Neuroscience Professor (1 episode, 2012)
Self - Search-Engine Specialist (1 episode, 2012)
Self - Anthropologist (1 episode, 2012)
Self - Neuroscientist, Mind Research Network, Albuquerque (1 episode, 2012)
Self - Neuroscientist, Massachusetts University (1 episode, 2012)
Self - Regenerative Medicine Research at Texas Heart Institute (1 episode, 2012)
Self - Theoretical Physicist, New York University (1 episode, 2012)
Self - Neurologist (1 episode, 2012)
Self - Nobel Price in Physics (1 episode, 2012)
Self - Evolutionary Biologist (1 episode, 2012)
Self - Director, Centre of the Mind, Univ. of Sydney (1 episode, 2012)
Psychopath (1 episode, 2012)
Self - Physicist, NASA (1 episode, 2012)
Self - Weisman Inst. of Science, Israel (1 episode, 2012)
Self - Communications Expert, SETI (1 episode, 2012)
Self - Sociologist, University of Delaware (1 episode, 2012)
Self - Scientist, Yale University (1 episode, 2012)
Self - Physicist (1 episode, 2012)
Self - Neuroscientist, Lawyer (1 episode, 2012)
Self - Benson-Henry Institute for Mind Body Medicine, Boston (1 episode, 2012)
Self - String Theorist (1 episode, 2012)
Self - Physicist, Chapman University (1 episode, 2012)
Self - Professor of Astrobiology, Univ. of Edinburgh, Scotland (1 episode, 2012)
Man's clone. (1 episode, 2012)
Self - Indiana University, Bloomington (1 episode, 2012)
Self - Psychologist, McGill University, Montreal (1 episode, 2012)
Self - Director, Resuscitation Science, UPenn (1 episode, 2012)
JPL, Pasadena, California / Self - Exotic Propulsion specialist, NASA (1 episode, 2012)
Self - Neuroscientist, University College, London (1 episode, 2012)
Goddard Space Flight Center / Self - Chemist, NASA (1 episode, 2012)
Self - Professor of Mechanical Engineering, M.I.T. (1 episode, 2012)
Self - Heart Surgeon, Yale-New Haven Hospital (1 episode, 2012)
Self - MD (1 episode, 2012)
Self (1 episode, 2013)
Self - Theoretical Physicist, Cern (1 episode, 2013)
Self - Particle Physicist, Cern (1 episode, 2013)
Self - Theoretical Physicist, Univ. of Southern Denmark, Odense (1 episode, 2013)
Self - Director, Cern (1 episode, 2013)
Self - Theoretical Physicist, Fermilab (1 episode, 2013)
Self - Future Scientist (1 episode, 2013)
Self - Neuroscientist (1 episode, 2013)
Self - Experimental Physicist (1 episode, 2013)
Self - Particle Physicist, Harvard University (1 episode, 2013)
Zombie Patient Zero (1 episode, 2014)
Self - Astrophysicist (1 episode, 2014)
Self - Artificial Intelligence Researcher (1 episode, 2014)
Self (1 episode, 2014)
Self - Physicist (1 episode, 2014)
Self - Clinical Assistant Professor of Environmental Studies at NYU (1 episode, 2014)
Twins (1 episode, 2014)
Self - Evolutionary Biologist (1 episode, 2014)
Self - Cosmologist and Theoretical Physicist (1 episode, 2014)
Self - Williams College (1 episode, 2014)
Self - Professor, University of Maryland (1 episode, 2014)
Self - University of Virginia Professor (1 episode, 2014)
Self - Founder and Director of Center for Neuroscience and Society at the University of Pennsylvania (1 episode, 2014)
Self - Brown University (1 episode, 2014)
Self - Woods Hole Oceanographic Institution (1 episode, 2014)
Self - Child Psychologist (1 episode, 2014)
Self - Applied Mathematician (1 episode, 2014)
Self - Comparative Psychologist (1 episode, 2014)
Self - Tennis Player (1 episode, 2014)
Self - Psychologist (1 episode, 2014)
Black Teen in Hoody (1 episode, 2015)
Weather Report Woman (1 episode, 2015)
Lying Boyfriend (1 episode, 2015)
Improv Actor (1 episode, 2015)
Incompetent Foe (1 episode, 2015)
Rain Man (1 episode, 2015)
Self (1 episode, 2015)
Self - Astrophysicist, Berkeley SETI Research Center (1 episode, 2015)
African American Teen (1 episode, 2015)
Doctor (1 episode, 2015)
Female Powerhouse Executive (1 episode, 2015)
Improv. Actor (1 episode, 2015)
Teenage Girl (1 episode, 2015)
Woman on Bench (1 episode, 2015)
Self (1 episode, 2016)
Homeowner (1 episode, 2016)
Football Fan (1 episode, 2016)
Study Subject (1 episode, 2016)
Self - Ballet Dancer (1 episode, 2016)
Wyatt's Mom (1 episode, 2016)
Delinquent (1 episode, 2017)
Delivery man (1 episode, 2017)
Self (1 episode, 2017)
Graffiti Punk (uncredited) (1 episode, 2015)