Johnny Test
Sekou ToureによるJohnathan Xavier "Johnny" Test is the titular protagonist of the show, the brother of Susan and Mary and the youngest child of Hugh and Lila. Johnny is 11 years old (10 in season 1) and best friends with his talking dog, Dukey. He is a mischievous, egotistical, and unpredictable young boy who's often called the "kid with the flaming hair" due to having scarlet red highlights in his blonde hair. Johnny typically wears green cargo pants, a navy blue dress shirt over a black T-shirt with a nuclear symbol, a black watch with a green visor (he rarely uses), and black hi-top sneakers. Johnny can live any kid's dream because of his genius sisters, only to find that some aren't worth living. He tends to be showing hyperactivity and laziness quickly. In the course of these escapades, he often messes with his sisters' inventions, causing trouble and mayhem for the town. Just as often, however, Johnny proves himself to be very clever, either by convincing his sisters to help him solve his created problems or by saving the day from whatever good happens to show up. Unfortunately, he always resorts to deceit (sometimes blackmail) to get what he wants and he angrily bemoans when things don't work out to his liking. Johnny's catchphrase is "Whoa, didn't see that coming!" during an unexpected event. Despite being generally repulsed by girls, he has nurtured attraction towards his classmates Janet and Sissy, the latter out of hostile rivalry. As a procrastinator, Johnny goes to great lengths to avoid any work, often using his sisters' inventions to do so, putting himself and others in danger as a result. He also has a superhero alter ego that he calls "Johnny X", whose superpowers include hurricane hands (speeding wind from his hands), shapeshifting, fire-powered transformation, teleportation, ESP, and "Power Poots". A running gag for this form is that his hurricane hands never work, either due to the target being immune to it or other factors.
