Which character says "That's all, folks!" at the end of many shorts?

Porky Pig says “That’s all, folks!” at the end of many shorts.

His familiar version is delivered with his characteristic stutter: “Th-th-th-that’s all, folks!” Porky often bursts through a bass drum at the end of a cartoon, turning the closing slogan into a visual as well as verbal signature. The character belongs to Warner Bros.’ Looney Tunes and Merrie Melodies universe.

Porky debuted in I Haven’t Got a Hat in 1935 and became Warner Bros.’ first major cartoon star. Although later characters such as Bugs Bunny and Daffy Duck became more prominent, Porky remained a recurring lead, straight man, and host-like figure. His stutter was central to his voice and comic timing, particularly in the closing announcement.

The phrase itself was not exclusive to Porky. Earlier Looney Tunes characters, including Bosko, Buddy, and Beans, had also used versions of “That’s all, folks!” But Porky became the character most strongly associated with it. That is why the answer is Porky Pig even though the wording can appear in other Warner Bros. cartoons.