The Quacker

The Quacker is a duck criminal who uses tricks against Meta Knight. His best friends are PigGuin, and The Rattler.

Origin
Jack F.N. Arthur was a blue duck who works for Kitty-face Nelson, Mammoth Mogul, Chompsy Marone, and Machine Gun Quacky. He was Mammoth Mogul's 2nd-in-command. The criminals were targeted by Meta Knight, and Marvin. The scheme took place in Power Plant (from Sonic Heroes), where they had to get rid of evidence, that the evidence were used that the criminals were behind the crimes. However, Mogul planned for revenge against Jack for having affair with Jack's wife. Mogul was captured by the police and was sentenced to 10 years in prison, prior to release. Meta Knight helped the police by defeating and capturing Mogul's men. Jack made a fast escape, as he made the levels of the machines more devastating so he can escape. This caused the vats to be filled with an uncontrollable mixture of chemicals. Jack attempted to shoot Meta Knight, but Meta Knight's mask reflected the bullet, causing Jack to get hit, and fall off, but grabbed the rope. Meta Knight tries to pull Jack up, but the rope breaks and Jack falls into the chemical vat, presumably killing Jack. The police attempted to get Meta Knight, but Meta Knight used a smoke bomb to escape. Later, a deathly white hand rises from the vat, meaning that Jack is now the Quacker.

Role in Troublemaking-Trio
The Quacker is a demolitionist, possibly due to his insanity.