In the television series Babylon 5 (1993-1998), a group of ancient races known collectively as the "First Ones" appear during the course of the show.
In the fictional "Buffyverse" established by television series Buffy the Vampire Slayer (1997-2003) and Angel (1999-2004), both created by Joss Whedon, the "Old Ones" are powerful pure-breed demons that once dominated Earth before humankind appeared and during its earliest years.