They are the Squeak Squad, a group of thieves. Here are the
members:
Daroach: He is the leader. He is a big gray mouse who wears a
red cape and fedora.
Doc: He drives a UFO, and has a mustache and swirly glasses.
Spinni: A yellow mouse with sunglasses and a cape.
Storo: A fat blue mouse with a red shirt, bandanna, and an
eyepatch.
Squeakers: Small mice that come in yellow, green, and blue. The
green and blue ones throw bombs.