Space Stars was a 60-minute American Saturday morning animated program block produced by Hanna-Barbera Productions and broadcast on NBC from September 12, 1981, to January 8, 1982. It featured five cartoon segments each week: Space Ghost (2 segments, 6 minutes each) The Herculoids (1 segment, 10 minutes) Teen Force and Astro and the Space Mutts were both new segments, although the Astro character was the family dog from The Jetsons. Gary Owens reprised his role as Space Ghost.