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Cathy starred with fellow Happy Days recurring star Crystal Bernard in High School USA
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Cathy's sister Tracey is a film producer.
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Cathy's voice was Marie Dodo in the Sesame Street production of Follow That Bird.
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Cathy did the announcing on SoapNet's Soap Talk.
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Cathy grew up living next door to Milton Berle.
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When Cathy appeared in Sgt. Bilko, she was credited as Catherine Silvers.
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Cathy had a role as First Lieutenant Monday in the 1996 remake of Sgt. Bilko, a movie that her father Phil had immortalized.
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Cathy has five daughters.
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Cathy's twin sister Candace appeared as Carla Bee in three episodes of Happy Days
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Cathy's sister Tracey is the mother of Jaclyn Sara Silvers, who appeared in an episode of 24.
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Cathy has three sisters: Nancey, Tracey, and fellow twin, Candace.
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Cathy's mother, and Phil Silvers' wife is Evelyn Patrick.
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Cathy shares a birthday with Peri Gilpin, who plays Roz Doyle on Frasier.
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Cathy appears as Card #15 in DuoCard's Happy Days collection.