The twins share resemblance to Tom Nook, sometimes showing evidence of mimicking the latter's phrases.

When alone in Animal Crossing: New Leaf they will also add a phrase at the end of the sentence in smaller text, though it does not copy the previous sentence's end like it does in previous games when they are together. Timmy and Tommy's most distinct feature is how one will echo the last phrase of the other when together. Tommy works Monday through Wednesday and runs the gardening floor of T&T Emporium. Their change when the Nookling Stores are upgraded. They have brown skin with dark brown mask-like surface running down their eye area. They are almost look alike because they are twins. Timmy and Tommy are raccoons (tanukis in the Japanese version). In Animal Crossing: New Leaf they are now the owners and managers of the Nookling Stores, after taking on the franchise from Tom Nook. In the games where they appear together in Nookington's, the closest twin will become the primary speaker when choosing an item on the top floor. Their full names were first revealed in Animal Crossing: New Leaf, when they are seen on the bulletin board during some shop upgrade announcements. Certain jock or lazy villagers will tell of a rumor that Tom Nook found them in the streets and raised them by himself. They are rumored to be his sons or nephews, and their last name is also listed as Nook. Timothy (better known as Timmy) (まめきち, Mamekichi ?) and Thomas (more often known as Tommy) (つぶきち, Tsubukichi ?) are the twin employees of Tom Nook, the tanuki who runs the town's store.

Animal crossing new leaf t&t emporium