Characters in night of the living dummy 3?

In "Night of the Living Dummy 3," the main characters include Jillian and her brother, who discover a sinister ventriloquist dummy named Slappy. Jillian is adventurous and curious, while her brother is more cautious and skeptical. The story escalates as Slappy comes to life and wreaks havoc, leading the siblings to confront the malevolent dummy. Additional characters include their parents and friends, who add to the tension and humor of the narrative.