Attention Deficit Hyperactivity Disorder (ADHD) is a common neurodevelopmental disorder that affects both children and adults. It is characterized by inattention, hyperactivity, and impulsivity. While there are no cartoon characters that have been officially diagnosed with ADHD, some characters exhibit traits that are consistent with the disorder. Here are some cartoon characters that are often associated with ADHD-like behaviors:

- SpongeBob SquarePants: SpongeBob is a popular cartoon character who lives in a pineapple under the sea. He is known for his hyperactivity, impulsivity, and distractibility. He often gets into trouble because of his impulsive behavior and his inability to focus on tasks for long periods.
- The Tasmanian Devil: The Tasmanian Devil, or Taz, is a character from the Looney Tunes cartoons. He is known for his hyperactivity and his tendency to spin around in circles. He is also easily distracted and has trouble paying attention.
- Bugs Bunny: Bugs Bunny is another Looney Tunes character who exhibits ADHD-like behaviors. He is known for his impulsivity, his inability to sit still, and his distractibility. He often gets into trouble because of his impulsive behavior and his tendency to act before thinking.
- Woody Woodpecker: Woody Woodpecker is a cartoon character who is known for his hyperactivity and his impulsivity. He is easily distracted and has trouble paying attention. He is also known for his loud, disruptive behavior.
- Bart Simpson: Bart Simpson is a character from the television show The Simpsons. He is known for his hyperactivity, his impulsivity, and his inability to sit still. He often gets into trouble because of his impulsive behavior and his tendency to act before thinking.
It is important to note that while these characters may exhibit ADHD-like behaviors, they should not be used as a model for understanding or diagnosing the disorder. ADHD is a complex neurodevelopmental disorder that can only be diagnosed by a trained healthcare professional.
In conclusion, while there are no cartoon characters that have been officially diagnosed with ADHD, some characters exhibit traits that are consistent with the disorder. SpongeBob SquarePants, The Tasmanian Devil, Bugs Bunny, Woody Woodpecker, and Bart Simpson are all characters who are often associated with ADHD-like behaviors. However, it is important to remember that ADHD is a complex disorder that can only be diagnosed by a healthcare professional.