Kate Costas is a recurring character on Season 3 of NBC series Frasier. She is portrayed by Mercedes Ruehl.


Kate is a new station manager of KACL, who quickly develops a love-hate relationship with Frasier, first being spiteful to each other, but later having an affair. She supposedly replaced Tom Duran as station manager, but left after a few episodes for a job in Chicago. Kate once had her finger tip bitten off, when a lizard attacked her rather than Bulldog. She describes herself as a cat person, owning a cat, and she can also speak Japanese.