One possible cartoon rodent with big front teeth could be Mickey Mouse. His front teeth are quite prominent and characteristic.
Maybe it's Jerry from Tom and Jerry. His front teeth are often shown as large and noticeable. Also, some other cartoon mice like Speedy Gonzales might have big front teeth.
A crocodile is a cartoon animal that often has big teeth. It's a fierce and well-known character in many cartoons.
One example could be Goofy from Disney. He's got those big, goofy teeth that are a big part of his character.
One example could be a dinosaur-like cartoon monster with huge sharp teeth for a fierce look.
Maybe it's a wild and crazy witch with big teeth and a big nose, usually causing mischief in fantasy cartoons. Such villains are designed to be visually distinct and memorable.
Maybe it's a character from a fantasy cartoon. Sometimes, wizards or magical creatures are depicted with large mouths and teeth to show their power or uniqueness.
It could be a goofy and comical character. Maybe someone like a nerdy but funny sidekick with those features to add to the charm.
Maybe it's a funny and exaggerated caricature of a human, designed to stand out with those distinct traits. Red hair and big teeth could be used to make the character look comical or unusual.
The character of Alvin from Alvin and the Chipmunks is another one with big front teeth. It's a defining trait that makes him stand out in the cartoon.
Some cartoon sharks might be designed without teeth to look friendlier or for a unique artistic style.
One popular cartoon rodent in anime is Hamtaro. It's cute and has many adventures with its friends.