Snoopy
Last but not least, we have Snoopy, the beloved pup from Charles M. Schulz’s Peanuts comic strip. Known for his lovable personality and signature red doghouse, Snoopy has been a fan favorite for decades. But there was a time when he was not a Beagle.

When Schulz first introduced him, he was actually a black and white dog of an unknown breed. As time went by, the writer decided to make him a Beagle! Today, this doggy is one of the most recognizable animated dogs in the world.