Carrie Spooner Heffernan (born Simone Spooner on June 19, 1968) is a fictional character on the American sitcom The King of Queens, played by Leah Remini.

Carrie Heffernan is the attractive, smart-mouthed wife to Doug Heffernan (Kevin James). Her father, Arthur Spooner (Jerry Stiller), lives in their basement. Although her wacky father and husband are a handful and behave like children, she shows much love towards them, great patience with them, and is always the responsible and the voice of reason in the house. For these reasons, Carrie is in charge, but sometimes she becomes particularly bossy. For instance, Carrie has been known to order Doug not to go to certain restaurants, kick out all of his friends when visiting, tell him what kinds of foods to eat, forbid him from wearing the kinds of cologne she doesn't like, and also give her father curfews. Because of things like this, Doug often disobeys Carrie and is very dishonest with her. Eventually Carrie finds out and the two end up in a big argument.

Like her father, Carrie is often ridiculously paranoid. She often will think people insult her behind her back and get annoyed with her. Carrie stopped Doug going to an Italian restaurant he loved, just because she believed the waiter sighed and rolled his eyes at her when she tried to change her order. Her habit of making small things into unnecessary issues extends beyond paranoia, however, and include making a large deal about a small issue with her gynecologist, and After a visit to a psychiatrist it is revealed that her excessive bossyness may be caused by a subconscious delight in seeing other people miserable (which may also be the reason that she tolerates Arthur's presence in the house). In addition, despite often being the voice of reason, she is also very unscrupulous and, at times, greedy and selfish. At times these traits will cause problems, at which times her clever unscrupulousness is often compared to Doug's good-natured lack of common sense (as Doug is, ironically, the knowing moral center of these episodes), or compounded to it when both their personalities cause a problem. Usually Carrie's (or, more often, both Doug and Carrie's) attempts to make things right fail miserably, causing situations to get worse and worse.

In Season Eight, it was revealed that her "real" name was Simone. When she was a child, Arthur lost her name in a poker game and had to switch names with her cousin Carrie. Carrie's mother, Sophia, insisted on having "mother to Simone" engraved on her tombstone. Carrie originally had a sister (or probably, and more specifically, a paternal half-sister named Sara (Lisa Rieffel)) who moved in along with Arthur, but after the first season, the character was dropped. It is worth noting that Sophia Spooner's grave makes no mention of another daughter.

Carrie's best friend is Kelly Palmer (Merrin Dungey), soft-spoken wife of Doug's best friend Deacon Palmer (Victor Williams). Doug and Carrie hired a dog-walker, Holly Shumpert (Nicole Sullivan) to walk her father (Arthur) so he doesn't get so annoying. Carrie and Holly's relationship is strained. Despite trying to bond on several occasions, they are not close friends. A primary reason for this is that Holly admitted to finding Carrie 'scary.' For example, in one episode Carrie went as far as threatening a concession stand worker's life, telling him if she didn't get a hot dog on a stick she would "put him on a stick."

She worked as a legal secretary for a lawyer named Doug Pruzan (Alex Skuby), and made slightly over half of the Heffernans' income. In Season Six, she lost her job and briefly worked as a dog walker, but didn't last long. By the end of Season Six, Carrie was working for a real estate development firm. During the series finale, Carrie and Doug adopt a Chinese baby named Ming-Mei. A day after adopting her, Carrie learns she is pregnant. A year later, she and Doug are busy taking care of Ming-Mei and their biological daughter, when Arthur's marriage ends and he moves back in with them.