Toto

Toto was a dog owned by MrCheese. It first appeared in Among Us Logic 7. It was a replacement of Cheddar but Toto turned into a zombie. MrCheese brought Cheddar back after the Zombie Virus incident. Later, Toto returned in Among Us Logic: Monster School as a student of Monster School.

It appeared in Among Us Logic 15 as a zombie again because of Captain's virus. It bites MrCheese and he was infected.

Shapeshifting
It can shift into different shapes that make it look like the body of a crewmate.

Trivia

 * Its name, Toto, is a reference to The Wizard Of Oz.
 * It is the only pet with an ability.
 * It is unknown how it got un-zombified.