Original: He and first wife, political activist Lee Stearns, are the parents of Film and TV Screenwriter, Joss Whedon ("Buffy the Vampire Slayer", "Angel", "Firefly", and "Dollhouse").
Simplified: Whedon is also the father of writer/producer/director Joss Whedon, the creator of Buffy the Vampire Slayer, Angel, and Firefly.