Thorn (Scooby-Doo)

Sally McKnight, better known by her stage name/nickname Thorn, is a recurring character in the Scooby-Doo franchise. She is the founder and leader of the gothic band the Hex Girls. Since her first appearance in Scooby-Doo and the Witch's Ghost (1999), she has made several appearances. In all of her appearances, Thorn is voiced by Jennifer Hale.

Background and Personality
Thorn hails from Oakhaven, Massachusetts, the primary setting of Scooby-Doo and the Witch's Ghost. She claims that she is 1/16th Wiccan on her mother's side. Meanwhile, her father is a pharmacist in her hometown.

While her stage name and appearance may suggest that she is goth, she is actually an eco-warrior, as her thoughts for the environment and the lyrics to one of her band's songs (Earth, Wind, Fire and Air) are suggestive that she is supportive of helping preserve the wonders of nature.

Scooby-Doo and the Witch's Ghost
In her initial debut, Thorn first appears after Shaggy and Scooby-Doo spot the Hex Girls' silhouettes appear down an alley after they left from the local diner in Oakhaven, Massachusetts. Seeing that their stomachs are full from eating all the food at the diner (and thus temporarily closing it), they disguise them as though they were their upper torso, giving them the appearance as though they were muscular. They then greet the girls, who then greet them back in a scary, seductive tone. Noticing their dark clothing and their feature of "fangs", the two cowards are freaked out and flee from the girls.

After reporting their encounter to the rest of the Mystery Gang, the gang investigates the area where they encountered the girls, after seeing no sign of the girls, the gang spots lights in a distant park. There they encounter the Hex Girlsand watched them practice their signature song (of which Thorn is the lead singer and the guitarist). Afterwards, the girls introduce themselves to the gang, to which Thorn reveals her real name and family background.

Towards the climatic end, after the ghost of Sarah Ravencroft was released to wreck havoc on Oakhaven. Velma resorts to have Thorn read an incantation from Sarah's spellbook book in an attempt to send the malevolent witch back into the book. Despite struggling to read the chant, she manages to successfully finish the chant and expel the witch back into the book, along side the traitorous author.

Afterwards, Thorn is held as the town's heroine (despite the fact that the town was largely destroyed from the witch), in an attempt to held fund for the towns' damages, the Hex Girls preformed a concert in the park, amongst the many citizens and tourists, with a message to "Love the Earth".