Mervin Monroe - Sherri and Terri

Sherri and Terri

Sherri and Terri, voiced by Russi Taylor, are identical twins with long purple hair and pale skin. They perpetually reinforce their identities as twins, with things such as making up their own 'twin' language. They are in the same class as Bart at Springfield Elementary School. In "Homer's Odyssey" it is revealed that their father is Homer's supervisor at the Springfield Nuclear Power Plant. He fires Homer for causing an accident while waving to Bart from a cart during a school tour of the plant. Homer, however, had the last laugh when he was promoted above the twins' father to safety inspector. Their mother is shown in "Bart Sells His Soul" and looks just like her daughters. Sherri is two seconds older than Terri; they share their birthday with Rod Flanders.

The girls themselves dress identically, reinforcing their "twin-ness". They are quite snobbish, and never miss an opportunity to berate Bart. Bart appears to have a crush on one of them, as admitted in "Hungry, Hungry Homer". Sherri referred to Bart as an ugly, smelly dork, but was persuaded by Homer to go on a date with Bart after he told her that she could not do much better. One of the twins stated that her sister had a crush on Bart in "Bart Star". Another time, in "Hello Gutter, Hello Fadder", Homer openly addressed Terri as "the girl Bart has a crush on". In The Way We Weren't, they introduce a cousin who has a crush on Bart. In The Blue and the Gray it was revealed that they were actually conjoined triplets, and that the third triplet is seeking revenge. The third triplet is seen in The Daughter Also Rises, but they state it is probably an optical illusion. In "Lisa's Substitute", they nominate Bart as the class president.