Kate O'Mara, 74, a British actress best known for her role as Caress Morrell, sister to Joan Collins' Alexis Colby, in the 1980s prime-time soap opera
The actress, who began her television career in the 1960s, is remembered by many for her role in "Triangle" — a soap opera set aboard a North Sea ferry that is often cited as the worst piece of British television.
She also appeared in the original run of the British series "Doctor Who" and the
More recently she appeared in a 2012 stage adaptation of
Born Aug. 10, 1939, in Leicester, England, O'Mara had a sister, Belinda Carroll, who also became an actress.
Times wire reports