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Official Site: Sony Pictures Television

This list of The Karate Kid characters reflects fictional characters in the Karate Kid universe which includes: The Karate Kid (1984), The Karate Kid Part II (1986), The Karate Kid Part III (1989), The Next Karate Kid (1994), the 2010 remake, and the Cobra Kai web television series (2018–present).

Judy was Daniel's girlfriend when he lived in New Jersey. She appears very briefly during the first few minutes of Karate Kid, with a group of people surrounding Lucille's car. When Daniel gets into the car he says: "Bye, Judy." Later after Daniel meets Ali, Lucille asks him (when they meet in a restaurant), "Is she prettier than Judy?" Daniel responds, "Oh, ma, she buries Judy!" In Season 2, Episode 1 of Cobra Kai, Daniel tells Samantha about Judy, stating, "Did I ever tell you about my first girlfriend? I was about your age and she was in another league. Beautiful eyes, amazing smile. I thought it would last forever." When Samantha asks what happened, Daniel states, "Grandma moved us out of New Jersey. Came to California. I met a new girl, Ali. This time I was sure she was the one. I mean Judy was great, but this was true love."

Lucille LaRusso (Randee Heller) is Daniel's mother. She is a single mom who relocates Daniel from New Jersey to Southern California due to her computer job transfer. It seems to have worked out well for her, as she later tells Daniel she was promoted and will be required to go to a manager's training program two nights a week. Although Lucille is a down-to-earth and independent woman, she is greatly concerned about Daniel's harassment from Johnny and his gang, an issue which is shared by Mr. Miyagi. She gets along well with Ali, and in contrast to the formality of Ali's parents, refers to herself as "Lucille" rather than "Mrs. LaRusso." She is a strong influence in Daniel's life and supports Mr. Miyagi's interest in him.

In the sequel series Cobra Kai, she is shown to initially have a troubled relationship with Daniel's wife Amanda, which they resolve through the intervention of Daniel and Amanda's daughter, Samantha. Lucille has fond memories of Mr. Miyagi and his support of her family. She also shares memories of her late husband, Daniel's father, with Daniel when he is having marital difficulties with Amanda.

Tory Nichols has not been a contender in any CBUB matches.