Joan Collins has paid tribute on Twitter to her Dynasty co-star Kate O'Mara, who has died at the age of 74.
Collins, who played Alexis Colby to O'Mara's Cassandra "Caress" Morrell in the popular 1980s US soap, tweeted:
Tragic news about Kate O Mara , we had great fun on Dynasty when she played my sister Caress who Alexis insisted on calling CASSIE ! RIP
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