 In the Pinero farce three years later, Trewin was equally approving of Sim and his co-star Patricia Routledge.On television, Sim's best remembered performance was probably as Mr Justice Swallow in the comedy series "Misleading Cases" (1967–71), written by A. P. Herbert, with Roy Dotrice as the litigious Mr Haddock over whose court cases Swallow presided with benign shrewdness.Sim returned to the cinema in 1971 as the voice of Scrooge in an animated adaptation of "A Christmas Carol".