KCET and Carl Sagan Productions, Inc. ; in association with the British Broadcasting Corporation and Polytel International ; executive producer and series director, Adrian Malone ; producer, Gregory Andorfer ; written by Carl Sagan, Ann Druyan, and Steve Soter
History Channel ; produced by Flight 33 Productions for History Television Network Productions ; producer, Samuel K. Dolan ; director, Douglas J. Cohen
produced by Flight 33 Productions, LLC for History Television Network Productions ; executive producers, Louis C. Tarantino, Douglas J. Cohen ; episode directors, Rob Beemer, Douglas J. Cohen, Frank Kosa, Louis C. Tarantino, Jim Hense, Laura Verklan, Darryl Rehr, Colin Campbell ; episode writers, Rob Beemer, Frank Kosa, Jim Hense, Adrian Maher, Laura Verklan, Darryl Rehr, Savas Georgalis, Colin Campbell