6. Moose
Or more famously known to everyone else as “Eddie the Dog” in the hit tv series “Frasier”, and known or giving Frasier as well as everyone else in the scenes his head tilts and puzzled expressions. Moose also ended up getting more fanmail than his co-stars too. However, he couldn’t keep up with the series and retired after seven years, his son Enzo taking his place until the show’s final episode. He did live quite a long life, dog-years wise, as he passed away from natural causes in 2006.