In the animated television series "Rugrats," Phil and Lil DeVille are fraternal twins with distinct personalities. Their mother is Betty DeVille, who is characterized as a tomboyish and athletic woman. Betty is voiced by Kath Soucie, who also voices the twins. In the original series, their father's name is not explicitly mentioned, but in the 2021 revival, it is confirmed that Betty is a single, openly gay mother. This change in the character's portrayal aims to represent the LGBTQ+ community more inclusively. For more information, you can refer to the Nickelodeon Wiki here.