Seinfeld had quite a few memorable supporting characters who, time and time again, would cross paths with Jerry. And, for the most part, the interactions were more awkward or adversarial than pleasant. For instance, rival comedian Kenny Bania. Or Jack Klompus, his parents’ neighbor at Del Boca Vista. Then there’s Bryan Cranston’s Tim Whatley, dentist and re-gifter extraordinaire. Other examples include the vengeful Joe Davola and…Newman! And outside the aforementioned postal worker slash neighbor of Mr. Seinfeld, the best of these recurring characters is none other than Uncle Leo.Uncle Leo is the type who is always there when you don’t...