Self - Host (13 episodes, 1980)
Johannes Kepler (5 episodes, 1980)
Young Champollion / Jean-Francois Champollion (4 episodes, 1980)
Betty Hill (3 episodes, 1980)
Tinget Indian (3 episodes, 1980)
Fourier (3 episodes, 1980)
Barney Hill (3 episodes, 1980)
Self - Voyager Navigation Team (3 episodes, 1980)
Self - Deputy Project Scientist (3 episodes, 1980)
Self - Voyager Imaging Team (3 episodes, 1980)
Jean-Francois Champollion (3 episodes, 1980)
Johannes Kepler's wife (uncredited) (1 episode, 1980)
Tycho Brahe (uncredited) (1 episode, 1980)