One of the primary reasons Everybody Loves Raymond remains so popular is its well-crafted characters. The show's protagonist, Ray Barone, is a lovable and flawed character, whose struggles to balance his family life and career resonate with audiences. The supporting cast, including Debra, Raymond's parents Frank (played by Peter Boyle) and Marie (played by Doris Roberts), and his brother Robert (played by Brad Garrett), add depth and complexity to the show. Each character is multi-dimensional, with their own strengths, weaknesses, and quirks, making them relatable and endearing to audiences. The characters' growth and development throughout the series also contribute to the show's enduring appeal, as viewers become invested in their lives and relationships.