Complex sentence: This is a list of an entire family of classic Warner Bros. cartoon stars, as it were featured in the "Looney Tunes and Merrie Melodies" series of cartoons and comics.
Split into simpler sentences: This is a list of an entire family of classic Warner Bros. cartoon stars. They all appear in Warner Bros. "Looney Tunes and Merrie Melodies" series of cartoons and comics.