Katherine "Kat" Rance is a character from The Exorcist television series and is played by Brianne Howey.
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Katherine is a former ballet dancer, once the golden child, she has not been the same since her terrible accident. Now depressed and anti-social, she’s closed off and guarded. So much so that her mother has begun to believe she might be influenced by a demon, though the thought would make Katherine laugh. [1]