Kate O'Mara played Alexis Colby's sister in Dynasty

Actress Kate O'Mara, who has died aged 74, appeared in the US primetime soap opera Dynasty opposite Joan Collins:

Read: Dynasty and Triangle star Kate O'Mara dies aged 74

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Dynasty and Triangle star Kate O'Mara dies aged 74

Former Dynasty star Kate O'Mara has died at the age of 74. She was best known for playing Alexis Colby's scheming sister Cassandra "Caress" Morrell in the US soap in the mid-1980s, along with roles in Doctor Who, Howards' Way and Triangle.