The Troublemakers

The Troublemakers are two villains in the fourth season of the computer-animated fantasy musical series Team Umizoomi. They like to cause mischief in Umi City. Their names are Little Trouble and Big Trouble. Little Trouble is voiced by Nick Hetherington, while Big Trouble is voiced by Jason Harris.

Personalities
Both brothers are mischievous, who both like to cause trouble. They sometimes break into fights when they don't agree with each other or when their plan fails. Little Trouble acts smarter than his brother, Big Trouble, who acts dimwitted, making him bully Little Trouble.

Trivia

 * They have their own vehicle called the Trouble Truck that is the Umi car's counterpart who helps the Troublemakers.