John Alderson counts as a veteran of both film and television whose career has outlived most of the formats it was recorded on. Drama keeps coming back on the credit list. Very few actors keep finding work for 75 years. 'Evil Under the Sun' is the title most people reach for first, with Police Sergeant at the center of it. 'Ragtime' counts among the more visible credits. The trail of credits goes back as far as 1951.