Unser Kosmos: Die Reise geht weiter
Neil deGrasse TysonSelf - Host
Ann Druyan
Carl SaganSelf (voice) (archive footage), Self (archive footage)
Seth MacFarlanePresident Harry S. Truman (voice), Sherwood Rowland (voice), Giordano Bruno (voice), (voice)
Sasha SaganRachel Molly Gruber
Stoney EmshwillerGuard (voice)
André SogliuzzoChristopher Wren (voice), Weichelberger (voice)
Christopher EmersonAcolyte (voice)
Piotr MichaelEdmund Muskie (voice), Lab Assistant (voice)
Enn ReitelHenry Norris Russell (voice)
Keythe Farley(voice)
Patrick StewartWilliam Herschel (voice)
Elizardo TorrezYoung Carl Sagan
Trang Vo(voice), Birthmark Woman
John Steven RochaBellaramine (voice)
Paul TelferAngry Scholar #2 (voice)
Jonathan Morgan HeitJohn Herschel (voice)
Cary ElwesEdmond Halley / Robert Hooke (voice)
Tom KonkleSamuel Pepys (voice)
Alexander SiddigIsaac Newton (voice)
Alfred MolinaIbn al-Haytham (voice)
Richard GereClair Patterson (voice)
Marc WordenHarrison Brown (voice)
Kirsten DunstCecilia Payne (voice)
Marlee MatlinAnnie Jump Cannon (voice)
Peggy Jo JacobsMargaret Harwood (voice)
Amanda SeyfriedMarie Tharp (voice)
Christiane AmanpourEnheduanna (voice)
Michael ChocholJan Oort
Oliver VaquerJoseph von Fraunhofer (voice)
Fred TatascioreDemocritus (voice)
Larry Cedar
Nick Jameson
Michael McConnohie
Masasa Moyo- MMaria Frucci
Martin JarvisHumphry Davy (voice)
Noah Langford(voice)
Fay Masterson(voice)
Heiko ObermöllerEinstein's Father (voice)
Julian OvendenMichael Faraday (voice)- JJack Rainsford(voice)
Glenn SteinbaumBruce Heezen (voice)
William Salyers(voice)
Paul SorvinoAugustin Mouchot (voice)
Eliza Schneider(voice)
Frank BaxterSelf (archive footage)
John F. KennedySelf (voice) (archive footage)- MMasoumeh HusseiniMonk (voice)
Harssh A. SinghAshoka (voice)
Nick Sagan
Clinnette Minnis
Shereen BallesFemale Voyager (voice)
Kapeneta Te'o-TafitiMale Voyager (voice)- JJoseph GrangeJohn Herschel (voice)
Carol Bach RitaCaroline Herschel (voice)
Viggo MortensenNikolai Vavilov (voice)
Ken Lally(voice)
Phil Crowley(voice)
Yuri Lowenthal(voice)
Edita Brychta(voice)
Christopher Lee Parson(voice)
Andrew Pifko(voice)
Brendan Bradley(voice)
Matthew Jayson Cwern(voice)
Alan Shearman(voice)
Natasha Goubskaya(voice)- SSkye Sammoutis(voice)
Marcelo Tubert(voice)
Mara Junot(voice)
Rick Pasqualone(voice)
Elijah Braik(voice)
Novi Brown(voice)
Jamie Hanes
Will GreenburgJohn Goodricke- DDex de Groot
- JJoep Fellinger
Steve OatwayCharles Darwin
Adam TsekhmanChristiaan Huygens
Neil ArnoteNeil Armstrong
Ernie VigilThomas Young
Judd HirschRobert Oppenheimer (voice)
Olivia D'AboMarie Curie (voice)- YYurika Okamura(voice)
- SSelyna Chan(voice)
- SSianna Chan(voice)
Joseph J. MicucciYoung Father
Lennard OrtmannAlbert Einstein
Alex BartramSamuel Sagan
Brannon BragaWorld's Fair Attendee
Marcello GuedesYoung Neil deGrasse Tyson
Leandro GuedesYoung Stephen Joseph Tyson