Guest Stars Tim Baltz as Various Characters Aasha Davis 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) Kyle Kinane as Himself (Narrator) Holly Laurent as Herself (Narrator) Paul Scheer as Carl Sagan Nathan Fillion as Wernher Von Braun Chelsea Peretti as Ann Druyan Adam DeVine as Pavel Belyayev 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