Independent Talent Group in London said Clarke died
peacefully in his sleep after a short illness.
"He will be greatly missed by his family and loved ones. At this
time we ask that you respect their privacy in their time of
grief," the agency said in a statement.
Clarke, who was born in Oldham, England, began his long career
in television in the 1960s and starred in the soap opera
Before turning to acting he worked as a copy boy for the
Manchester Evening News.
Clarke played opposite actor Malcolm McDowell in Stanley
Kubrick's "A Clockwork Orange" in 1971 and most recently was
best known for his television role as Detective Superintendent
Andy Dalziel in "Dalziel and Pascoe," which ran from 1996 to
Clarke was filming a new BBC adaptation of TV series "Poldark"
before he died.
(Reporting by Patricia Reaney; Editing by Piya Sinha-Roy and Tom
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