Vetvix (voiced by Vanessa Marshall) is a main villain of the 2009 animated film Garfield's Pet Force and also one of the three secondary villains of the 2006 animated horror film Alvin and the Chipmunks: Crime Investigation. Her name is pun for "veterinarian" and "vixen". Most importantly, her appearance is similar to that of Dr. Elizabeth Wilson. In Garfield's Pet Force, her occupation is a dictator instead of a biker.
Little is known of Vetvix before her first encountered with Donald Walls, but it is known that she was the leader of a group of bikers, and two of her members were Mr. Sanban (Keone Young) and the Joker (Jeff Bennett).
In the early summer of 2006, Vetxix, along with Mr. Sanban and the Joker stops at a convenience store in Monterrey Park. Both Vetvix and Mr. Sanban held both Brittany (Christina Applegate) and Jeanette (Anna Faris) hostage while the Joker was making trouble for Eleanor (Amy Poehler). When he has Brittany's thrown pink wallet, he wants Eleanor to ask him politely for the pink wallet back with a word "Sir", so Eleanor does. Both Vetxix and Mr. Sanban let go of Brittany and Jeanette. While she, Brittany, and Jeanette get ready to leave, Vetvix was outside in the front of the store drinking a can of lemon tea as she sees Jeanette, Eleanor, and Brittany inside the car. When Jeanette starts the car, Vetvix begins smashing the windshield of a car that Jeanette was driving. However, due to her clumsiness, Jeanette accidentally runs over their motorcycles as revenge for troubling her, Brittany, and Eleanor, causing Vetvix to fume and shout in anger while Brittany and Eleanor praises Jeanette as they drive away.
The three bikers stops at the suburbs of Riverside. Vetvix goes to a haunted house across from Shaggy Rogers' house and discovers Mr. Sanban dead. When she sees Donald Walls (posing as Theodore Seville), she grabs a meat cleaver, hoping to defend herself from the bloodthirsty killer. Theodore/Donald continues his scope out of the barn, only to have Vetvix and start attacking him with a meat cleaver. Theodore/Donald counterattacks by hitting Vetvix with a tennis racket. While Theodore/Donald is trying to kill both Shaggy Rogers (Matthew Lillard) and his Great Dane companion named Scooby-Doo (Frank Welker), they runs into the haunted house. They are suddenly met by Vetvix, who survived the earlier fight with Theodore/Donald. Enraged, Theodore/Donald turns his attention to Vetvix by using a meat cleaver to chops off her left hand. Both Shaggy Rogers and Scooby-Doo continues running in fear as Vetvix screams in horror after Theodore/Donald chops off her left hand and hacked her multiple times with a machete. Vetvix's corpse was later found and eventually taken away by the paramedics.