Tad is a butterfly fish who is the son of Phil. He, along with Pearl and Sheldon, befriends Nemo in school. He admits himself to being obnoxious.
Finding Nemo[]
"Despite being a colorful specimen, Tad isn't a particularly bright spark and finds it hard to get attention unless he does something really dumb. That's why he plays pranks on other kids, like when he pretends to shove Pearl off the drop-off. He also says that Nemo looks funny because of his "lucky fin." Despite being an annoying kid, Tad is a frank character, and is honest enough to describe himself as obnoxious."[1]
One of Mr. Ray's students, Nemo meets Tad and his friends while waiting to start school. He was part of the group who saw the boat. Like the other children, he tries to see how close to it he can swim. When the diver appears, he flees with the rest of the class.
He briefly appears at the end welcoming Nemo and newcomer Squirt into the class.