What is cartoon character that whistles when he talks?

The cartoon character who whistles when he talks is probably best known as Daffy Duck, a fictional character created by Warner Bros. Animation in the late 1930s. He is one of the most iconic and recognizable animated characters in history, starring in many cartoon shorts alongside other famous characters such as Bugs Bunny and Porky Pig.

Daffy Duck is characterized by his short temper, his tendency to talk too much, and his distinctive, barely intelligible speech that is punctuated by a whistle sound. He is often portrayed as a greedy and selfish character, always trying to gain an advantage over others or to get rich quick.

Over the years, Daffy Duck has appeared in hundreds of cartoons and other media, and has become a beloved pop culture icon. He has been featured in movies, TV shows, comic books, and video games, and is known around the world as one of the most recognizable and entertaining cartoon characters of all time.