Percy L. Crosby (1891-1964) was an American cartoonist, best known for creating the comic strip "Skippy." He began his career as a cartoonist in the 1910s and created several different strips before launching "Skippy" in 1923. The strip featured a young boy named Skippy and his adventures with his friends, and was known for its humor, satire, and social commentary. "Skippy" was hugely popular and was syndicated in newspapers across the United States and around the world.

Crosby was also known for his political and social views, which often found their way into his comics. He was a vocal critic of fascism, communism, and other totalitarian ideologies and he was also a vocal supporter of the underdog and the working class. He was also an advocate for children's rights.

In the late 1920s and early 1930s, Crosby experienced financial and legal problems, and eventually lost control of the rights to "Skippy." He continued to create comics and cartoons, but never regained the success he had with "Skippy." He spent the last 30 years of his life in relative obscurity and poverty, and died on December 18, 1964.

Despite his struggles, Crosby's "Skippy" is still remembered as one of the most popular and influential comic strips of the 20th century. His work has been reprinted and republished multiple times, and has been adapted into films, television shows, and other media.