Ratso

Ratso is one of the major characters from The Brave Little Toaster Goes to Mars and The Brave Little Toaster to the Rescue. He is voiced by Andy Milder.

The Brave Little Toaster Goes to Mars
Here, he is shown to be very kind and helpful to Toaster and the other appliances. He stays behind and stands watch while Toaster and his friends go and rescue Robbie, whom the appliances all affectionately call "the little master."

The Brave Little Toaster to the Rescue
Here, he is first shown to be always very grumpy and angry, as if mad about being kept as a pet. He's rude to pretty much everyone, but he does come through in the end for Toaster and his friends, while putting himself at great risk as well.