#15: Hank Azaria as Nat Ostertag
Hank Azaria played Nat Ostertag, the sweet, awkward dog walker who became part of the Buchmans’ extended family. Endlessly kind and hilariously unlucky in love, Nat’s gentle personality added warmth to the show’s later seasons. His chemistry with the Buchmans — and their dog — was pure sitcom gold.

Before joining Mad About You, Azaria was already a rising star, known for his incredible voice work on The Simpsons. His knack for creating instantly lovable oddballs made Nat one of the show’s most memorable recurring characters.
