Sal Left Thumb

 The Robber is a minor character in The Amazing World of Gumball. He is a wanted and very dangerous criminal, and there is a large reward for his capture. In The Spoon, he robs the gas station with the unwitting help of Gumball and Darwin.

Appearance
The Robber resembles an over-sized, sentient fingerprint. He usually is seen wearing a domino mask, likely to keep his identity a secret. His teeth are sharp and pointed, but are somehow straight occasionally. His limbs are very long and skinny, and are rather small compared to the rest of his body.

He possesses the ability to flatten himself on the ground and just appear as a regular fingerprint.

Personality
The Robber is a dangerous and infamous criminal in Elmore. He seems to be very blunt about his "job" and is ruthless as well. He can also be a very sneaky liar, such as when he decieved Gumball and Darwin into working for him; though this could also be because of the latter pairs' stupidity.

Episode Appearances

 * The Spoon: He attempts to rob the gas station with a spoon.
 * The GI: He appears in Nicole's flashback.
 * The Kiss: Darwin says hello to him while he is trying to break into someone's car.
 * The Date: He's seen as a drawing on a sheet of cardboard.

Trivia

 * He went to Elmore Junior High with Richard, Mr. Small, and Penny's Father.
 * He seems to have a habit of calling people "suckers."
 * The name on his wanted poster says "Sal Left Thumb".