Guest Stars Aasha Davis as Various Characters Tim Baltz as Various Characters Maria Blasucci as Various Characters Michael Coleman as Various Characters Mort Burke as Various Characters Craig Cackowski as Various Characters J.T. Palmer as Various Characters Bennie Arthur as Various Characters Matt Gourley as Himself (Narrator) Holly Laurent as Herself (Narrator) Kyle Kinane as Himself (Narrator) Paul Scheer as Carl Sagan Nathan Fillion as Wernher Von Braun Adam DeVine as Pavel Belyayev Chelsea Peretti as Ann Druyan Blake Anderson as Alexey Leonov Mark Gagliardi as John Fitzgerald Kennedy Steve Berg as Himself Uncredited Jeffrey James Lippold as NASA Army Captain / Nazi Scientist