They speak in conventional voices, versus the "duck"-like voices they possessed in earlier cartoons such as DuckTales and Disney theatrical shorts, and they each have their own distinct personalities also in contrast to their earlier portrayals. They usually do this by tricking Donald, or whoever else they wish to manipulate. Huey, Dewey, and Louie have distinct personalities more-so than they have been presented with in their earlier lives. Huey was the smooth-talker and schemer, Louie was the athlete and oddball, and Dewey was the intellectual and prankster. The show centers on the adventures of Donald Duck and his nephews, Huey, Dewey, and Louie , who are portrayed as teenagers in this series for the first, last, and only time. The actual age of the boys is not made certain; but in one episode they asked Donald if they could have a car. They also share a profound knowledge of cars and mechanics.
Anabella. Age: 20.
House of Mouse isn't canon.
Imani. Age: 31.
If they were of the legal age to drive, this would make them at least sixteen years old. Huey must have been the first to be born, therefore making him the eldest of the brothers. Compare and contrast Ducktales and QuackPack 14 messages. Ludwig Von Drake also appears in this series, but, even though the series takes place in Duckburg, Scrooge McDuck does not appear.