Phil and Lil DeVille
Phil and Lil Deville are fraternal twins, although they look exactly the same. They live next door to Tommy and are often at his house playing as friendly neighbors. They love eating worms, playing in mud, and Reptar. Both Phil and Lil are always enthusiastic to join in Tommy's adventures and do everything together; however they tend to argue a lot. It's evident that Phil and Lil suffer from Sibling Rivalry Disorder. The most common symptoms of sibling rivalry are frequent and continuous demands for attention as well as aggressive behavior. Not sharing toys with one another is the first recognizable symptom of Sibling Rivalry Disorder that occurs within a pair of siblings suffering with the disorder. In "Together at Last", Phil and Lil get in a fight over a toy and it gets so severe that their mother, Betty, has to separate them by sending Lil to Tommy's while Phil is at home. Although they end up reconciling at the end, they begin fighting again once Phil blames Lil for starting it all. Symptoms of Sibling Rivalry Disorder that Phil and Lil exhibit are jealousy of one another, demands for attention, and aggressive behavior (fighting over the toy Reptar). Like Phil and Lil, siblings who are different genders tend to have a greater propensity of Sibling Rivalry Disorder.