His work as Albert Robinson in another series Sleepers that crossed to America's shores brought him to my attention and I watched the programs faithfully. The plot has the KGB integrating two agents into British Society. The agents forget why they've been sent and become as British as the native born. Warren Clarke played a moderate trade unionist, a happily married man with children and a council house in the north of England. When the KGB realizes what has happened they pursue the agents closely followed by the CIA and M15. I never missed an episode of the series.
Reginald Hill's Dalziel and Pascoe crime fiction are classics and they were presented as a series on PBS featuring Clarke as Detective Superintendent Andy Daziel--fat, crude and complicated. I--along with many, many fans--never missed an episode.
On reading his obit, I learned of all the stage roles Clarke had played and wished we had been able to see them here in America.
Rest in peace Warren Clarke.