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Kate O’Mara of Dynasty fame has passed away. The actress was 74.

She became household name for playing Joan Collins’ sister on the iconic show. Kate O’Mara died Sunday following a short illness, reports indicate.

Her agent says the actress passed away in a Sussex, England nursing home this morning, though it’s not clear what illness O’Mara was suffering from.

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O’Mara’s manipulative Dynasty character, named Cassandra “Caress” Morell, made her show debut in 1986, and made a major impact for two seasons.

Kate most recently acted in a theater production back in 2012.

R.I.P. to O’Mara and these other stars we’ve lost in 2014: