Since I don’t have any characters who have names beginning with the letter D, (I have several ideas that are not completely developed and planned and that have characters that are not yet named) I will talk about one of my favorite characters that I did not create, and who has a name that begins with the letter D. That would be Daffy Duck.
Daffy Duck was first created in 1937. He was one of the first characters to be what is called a screwball character. He acted completely crazy and tormented his antagonists with his nuttiness. This is was what made him popular with audiences. He eventually supplanted Porky Pig (who was the first Warner Bros. cartoon character to truly become popular) as the most popular Looney Tunes character.
However, as with many characters, he changed. In some cartoon shorts, Daffy was toned down, but still rather goofy. But 1948 gave him a significant change. In the cartoon called, You Were Never Duckier, he is upset that at a fair, the best rooster will win $5,000, but the best duck will win only $5. He decides to disguise him as a rooster to win the money. This was the beginning of Daffy being changed into a greedy, negative character, although his personality was not as negative at the time.
Director Chuck Jones fully changed Daffy when he pitted him against Bug Bunny, who by then had been the most popular Looney Tunes character for several years, in 1951 with the cartoon Rabbit Fire, which showed them arguing over whether it is rabbit season or duck season. This caught on and many other cartoons depicted Daffy as greedy, arrogant, and mean-spirited. Director Friz Freleng took the Bugs-Daffy rivalry further by making them show business rivals in shorts like This is a Life?, A Star is Bored, and Show Biz Bugs.
In the 1960s, after Warner Bros. shut down their cartoon studio, due to the growing popularity of TV, and contracted out animation to outside entities. Most of the Looney Tunes characters were dropped; Daffy was one of the exceptions. He became an antagonist of Speedy Gonzales, and most of such cartoons are criticized not only for being unfunny and slow, but for making Daffy completely unlikable. By 1968, Daffy and Speedy made their last theatrical appearances, and the following year, Warner Bros. pulled the plug on theatrical cartoons.
Despite this Daffy Duck cartoons continued to be rerun on TV. There were several revivals of Looney Tunes in the forms of TV specials, compilation films, TV series, and more. Al of this ensured that such a complex character would never lose his popularity.