This version of Kris Kringle is presumably similar to the main universe's overall, but appears as an anthropomorphic polar bear and has an ongoing feud with Scrooge McDuck, who does not "allow that man in his house". Scrooge would later allude to Santa being a "reindeer-rustler" and reiterate to Dewey Duck that he is not to be trusted. The defenses of McDuck Manor also include a “Santa Trap” in the fireplace.
Scrooge and Santa’s feud stemmed from Santa having “stolen” the idea of Christmas from Scrooge. In reality, the two collaborated on the concept, which was initially to deliver Scrooge’s coal to customers on Christmas Day. However, after going through the effort of obtaining both Los Renos Voladores and the Feliz Navidiamond, Santa expressed the desire to give away the coal for free. Scrooge, ever the businessman, balked at the suggestion, and ended his partnership with Santa over the disagreement. Preferring to deliver toys he had crafted, and assisted by a group of elves, Santa began the famed tradition.
Decades later, Santa sought to reconnect with his old friend Scrooge, feigning an injured leg in order to beg for his help. Scrooge reluctantly agreed to help Santa on his delivery route with the promise that Santa would not visit McDuck Manor again. After suggesting some practical improvements to the rather whimsical Santa’s methods, and finally learning what Santa had been trying to impress upon him all those years ago, Scrooge reconciled with Santa. The two completed their task with the aid of Scrooge’s family, and Santa was invited to visit the manor whenever he wished, providing he entered by the door.
Behind the scenes
According to Francisco Angones on Tumblr, the reason for Scrooge's hatred of Kris Kringle (which will be addressed in Season 3 of the televised series) is "objectively serious" rather than a petty concern.