Caleb Scharf

饰：Himself - Director of Astrobiology Center, Columbia University

Kelvin Long

饰：Himself - Physicist & Vice President, Icarus Interstellar

Hakeem Oluseyi

饰：Himself - Professor of Physics & Space Sciences, Florida Institu

Karl Stapelfeldt

饰：Himself - Astrophysicist, NASA Goddard Space Flight Center

David Bartell

饰：Himself - Science Fiction Author

Paul Levinson

饰：Himself - Professor of Media Studies, Fordham University

Heather Gautney

饰：Herself - Professor of Sociology, Fordham University

Catherine Asaro

饰：Herself - Visiting Professor of Physics, University of Maryland

Jason Kring

饰：Himself - Professor of Spaceflight Human Factors

Paul Falkowski

饰：Himself - Professor of Geological Studies

Fernando I. Rivera

饰：Himself - Professor of Sociology, University of Central Florida

Sara Seager

饰：Herself - Professor of Planetary Science and Physics, MIT

A.J. Bruno

饰：Country Boy

亨特·德诺

Hunter Deno

饰：Country Girl

Winston Haynes

饰：Conner Olsen

Ryan Kim

饰：Weatherman

Krystle McMullan

Krystle McMullan

饰：Astronaut

Hunter Denoyelles

Hunter Denoyelles

饰：Country Girl,(as Hunter Denoyelles)

Matt Ganey

Matt Ganey

饰：Self

John G. Rice Jr.

饰：Scientist