"The X-Files" was inspired by earlier television series which featured elements of suspense and speculative fiction, including "The Twilight Zone", "Night Gallery", "Tales from the Darkside", "Twin Peaks", and especially "". When creating the main characters, Carter sought to reverse gender stereotypes by making Mulder a believer and Scully a skeptic. The first seven seasons featured Duchovny and Anderson equally. In the eighth and ninth seasons, Anderson took precedence while Duchovny appeared intermittently. New main characters were introduced: FBI agents John Doggett (Robert Patrick) and Monica Reyes (Annabeth Gish). Mulder and Scully's boss, Assistant Director Walter Skinner (Mitch Pileggi), also became a main character. The first five seasons of "The X-Files" were filmed and produced in Vancouver, British Columbia, before eventually moving to Los Angeles to accommodate Duchovny. The series later returned to Vancouver to film "The X-Files: I Want to Believe" as well as the tenth and eleventh seasons of the series.