Roger the Mouse

A small white mouse who appeared in "The Lab Brat." In the Daria TV series, the mouse used by Daria for her maze experiment had no name, but in the fanfic "Scarlett" he turned out to be the reincarnation of Rita Barksdale's former boyfriend, Roger, who was mentioned in "I Don't" as having been killed in a skydiving accident. He became the talking companion of Scarlett and has reappeared, in both talking and normal-mouse modes, in other fanfics since then.