Touch of sadness as Frost comes to end
TV bosses have filmed two alternative endings for his last ever appearance as DI Jack Frost to keep viewers guessing how he will bow out of the role after 18 years.
The actor will be seen in a two-part finale to his role as the TV detective, called If Dogs Run Free.
Sir David, 70, said: "On the final day of filming there were moments in the script when I had to find tears and let's just say those tears weren't hard to find. I think everyone on set had the feeling something really special, which had been a big part of all our lives, was finally coming to an end."
The star, whose acting career has spanned 45 years, said the time had come to end the series.