Answer
Fonzie, portrayed by actor Henry Winkler in the popular 1970s sitcom "Happy Days", is indeed Chachi's cousin. Chachi Arcola, played by Scott Baio, is a prominent character in the series, known for his trademark phrase "Wazzup?" Fonzie and Chachi share a tight bond throughout the show, showcasing a cousinly relationship marked by camaraderie and mutual support.