Leona, otherwise known as the Black Belt Widow, is a character and antagonist in Kickin' It. She is a notorious lady known for marrying rich karate super stars and inheriting their fortunes after they mysteriously "disappear".
She was portrayed by guest star Denise Richards.
In the episode Wedding Crashers, it is seen Leona trying to do the same to Bobby Wasabi, but in the end, is caught by the Wasabi Warriors. It is shown Rudy develops a crush on her, and was about to propose, until it is revealed she is really a criminal.