Final answer:
True, Felix the Cat was often likened to Charlie Chaplin due to his similar fame and comedic style in silent films.
Step-by-step explanation:
The statement that Felix was sometimes called the Charlie Chaplin of cartoon characters is true. Felix the Cat, one of the most popular animated characters of the silent film era, shared a similar level of fame and style of physical comedy as Charlie Chaplin, who was known for his iconic Tramp character in silent films like 1921's The Kid. Just as Chaplin captured the hearts of viewers with his on-screen persona, Felix's mischievous behaviors and the ability to get out of troublesome situations endeared him to audiences, earning him a comparison to the silent movie star.