Crystal (voiced by Pamela Adlon) is a porn star who misinterprets Beavis' eye twitching after being sprayed in the face with a carbonated drink as tweaking (a repetitive movement often caused by drug use) in the episode "Holding". She asks him if he is "holding" (carrying drugs). Beavis, obviously unaware of the meaning, tells her that he is. Increasing the misunderstanding, she tells him "I really need to score", which B&B interpret as have sex. She and her companion Sapphire take the boys in their van from Maxi Mart to the house where her next movie is being filmed, assuming that the boys will sell them drugs once they get there. B&B believe that they are about to be paid for having sex with the women.
Protagonists: Beavis / Cornholio / Old · Butt-Head / Old
Recurring Characters: Tom Anderson · Stewart Stevenson · Todd · Burger World Manager (2022) · Mrs. Stevenson · Mr. Stevenson · Lolita and Tanqueray · Maxi-Mart Clerk
Highland High School: David Van Driessen · Daria Morgendorffer · Principal McVicker · Coach Buzzcut · Spanish Teacher · Ms. Tress · School Nurse · Kimberly · Cassandra · Earl · Martin (thin) · Mrs. Dickey · Gina · Dreama · Dean Zunker · Punk Girl · Wilbur · Martin (gifted student) · JD · Glennis · Cody · Audrey · Mrs. Ortiz · Security Guard · Gym Teacher · Tommy · "Spare Me" Girls · Amy Asskowitz · Audrey's Friend · Dick Gaylord · School Psychologist · Ms. Jenkins · Jim the Substitute · Woodshop Teacher · Ryan · Librarian · Unnamed Female Teacher (Citizen Butt-Head)
Minor Characters: Marcie Anderson · Clark Cobb · Dave · Harry Sachz · Homeless Man · Madame Blavatsky · Redneck Lady · Crazy Farmer · Billy Bob · Slade · Psycho · Principal Brown · President Bill Clinton · Concert Girls · Hamid · Sterculius, the Roman God of Feces · St. Peter · Unnamed Police Officers · Mr. Manners · Frog · Harry Buddisker · Hiro · Mistress Cora Anthrax · Biker Lady · Fork Injury Guy · Peter Small · Killer · Second Killer · Ross and Harlan · Ellen · Keith · Case Worker · Rabid Ron · Lydia · Katya · Hairdresser · McVicker's Family · Beavis' Imaginary Children · Butt-Head's Imaginary Children · Gus Baker · Leroy · Fire · Jesus Christ · Ganesha · Buddha · Zeus · Bill Gates · Bill (Steamroller) · Linda · Joan · Mall Girls · Elevator Chick · Joe Adler · Suspicious Chick · Maya Kanigher · Megan · Old Woman (Couch-Fishing) · Cop (Couch-Fishing) · Cop (Pipe of Doom) · Cop (Screamers) · Mechanic · Slob · Priest · Rabbi · Jasmine · Captain Dick Jackman · Charlie the Angel · Misty Lou · Lucas · Dennis · Female Judge · Screaming Guy · Black Female Cop · Corvair Owner · Jim Baxley · Snake Woman · Urologist · Dr. Fisk · Dr. Leibowitz · Vet Receptionist · Wrong Mr. Anderson · Crystal · Sapphire · Gary · Shawna · Suspicious Chick · Debra Shea · Trish Burbee · Tiffany the Rubber Band Lady · Max Graham · Veterinarian · Victoria's Dad · Ric Aaron Joseph · Receptionist (Pumping Iron)
Movie Characters: Muddy Grimes · Dallas Grimes · ATF Agent Bork · ATF Agent Flemming · FBI Agent Hurly · Old Woman · Motley Crue Roadies · Judge · Serena Ryan · Jim Hartson · Mattison · Empress Beavis · Emperor Butt-Head
Smart Characters: Smart Beavis · Smart Butt-Head · Smart Daria · Smart McVicker · Smart Buzzcut · Smart Van Driessen · Smart Todd · Smart Judge · Smart Mrs. Stevenson
Mentioned Characters: Shirley Beavis · Tom Anderson's Son · Tom Anderson's Father