Lou Scheimer , a pioneer in Saturday morning and weekday afternoon television cartoons with hit shows such as `` Superman , '' `` Fat Albert '' and `` He-Man , '' has died at 84 , according to his biographer . Scheimer died Thursday , said writer Andy Mangels , who said he spoke with Scheimer 's family . Amy Rosenberg , Scheimer 's daughter-in-law , confirmed his passing as well . Scheimer was a founder of Filmation , which began producing Saturday morning staples in the 1960s , including superhero stories and an animated version of `` Star Trek . '' Later , the studio found hits with `` Fat Albert and the Cosby Kids , '' `` He-Man and the Masters of the Universe , '' and `` She-Ra , Princess of Power . '' Scheimer occasionally did voice work on the cartoons . Filmation 's library was purchased by DreamWorks last year . People we 've lost in 2013 .
Scheimer was a pioneer in Saturday morning cartoons such as `` Fat Albert studio later produced `` Superman '' His Filmation , `` He-Man '' and `` Fat Albert Filmation 's voice appeared on some cartoons . DreamWorks bought the Filmation library Saturday .