Both Juliet Rylance's Della Street and Chris Chalk's Paul Drake have been given significant storylines, and at times Chalk has found the whole thing a bit depressing, noting how many of the issues faced by his character are still prevalent today.

Source: https://www.slashfilm.com/1254886/perry-mason-season-2-episode-6-bloody-sneakers-explained/

The Canadian actress Sharon Acker, who played Lee Marvin’s unfaithful wife in the 1967 neo-noir masterpiece Point Blank and Monte Markham’s right-hand woman Della Street on a revival of Perry Mason in the 1970s, has passed away.

Source: https://ksusentinel.com/2023/04/02/sharon-acker-actress-in-point-blank-and-perry-mason-passed-away-at-the-age-of-87/