Muzzle (Frank Welker): A Rottweiler. Muzzle was once "Scout", Professor Sheperd's dog that was kidnapped. He was never transformed into a Cano-sapien,but instead becoming aggressive due to Parvo's failed experiment on him. Due to this aggression, he is often restrained on a cart while wearing a straitjacket and mask. He serves as a “final attack” for the team. Whenever the Rovers feel they are outnumbers, Hunter takes off Muzzle’s straitjacket and mask, letting Muzzle jump in to attack on Hunter's command of “Let’s Muzzle ‘em!”. Muzzle and Hunter first meet when Parvo drops Muzzle off at an animal shelter, after having failed to turn Muzzle into a Cano-sapien 🇺🇸