The series was produced by Hanna-Barbera Productions and broadcast on NBC from September 22, 1979, to December 15, 1979. Casper the Friendly Ghost is a "guardian ghost" to two female Space Police officers named Mini (who is a rather ditzy redhead) and Maxi (a much more intelligent African-American woman with a very short temper) They patrol the Jetsons-style Space City on their flying motorcycles in the year 2179.