Arthur Spooner is a fictional character from the television sitcom The King of Queens, portrayed by actor Jerry Stiller. He is the father-in-law of the main character, Doug Heffernan, and is known for his quirky personality and humorous antics. Arthur often lives with Doug and his wife, Carrie, creating comedic situations and family dynamics. Arthur is characterized by his eccentric behavior, love for the past, and a strong attachment to his pet cat, Mr. Jinx. His interactions with the other characters often highlight his stubbornness and unique perspective on life, making him a memorable part of the show's ensemble cast.