“Agatha Christie’s Poirot” (BritBox)
Many have played the iconic I-am-not-French-I-am-Belgian detective (including, most recently, a surprisingly good Kenneth Branagh), but no one beats David Suchet, who has done it for 25 years and 70 episodes.
“Agatha Christie’s Marple” (Acorn TV, Hulu)
Many have also played the iconic denizen of St. Mary’s Mead, Jane Marple, but I think Geraldine McEwan best captures the trademark combination of flutter and canniness that made Miss Marple such a revolutionary and enduring character.
“Sherlock” (Netflix)
Obvious. Writers Steven Moffatt and Mark Gatiss, stars Benedict Cumberbatch and Martin Freeman and a supporting cast that shines even by BBC standards all conspired to bring the Great Detective into the modern world. I watch the entire series every year. Sad, but true.
“Prime Suspect” (BritBox)
Equally obvious. Jane Tennison introduced the now-legendary Helen Mirren to those Americans who did not remember her from “Excalibur,” and proved that women could head police departments and police procedurals. Holds up to this day for reasons laudable and lamentable.
“Happy Valley” (Netflix)
West Yorkshire police sergeant Catherine Cawood (Sarah Lancashire) is perhaps Jane Tennison’s most recent and glorious descendant, only she is also a working granny, plagued by the death of her daughter. There is a reason “Happy Valley” is consistently on critics’ lists — it’s by Sally Wainwright which means it’s great.
“Scott & Bailey”
(Hulu) This is one of my go-to recommendations for anyone looking for something to watch. Also written by Wainwright, it follows the professional and personal exploits of two Manchester police detectives. But mostly it’s the story of the very complicated friendship between Janet Scott (Lesley Sharpe) and Rachel Bailey (Suranne Jones.)
“Foyle’s War” (Acorn TV)
A simply perfect television series, made even more currently compelling by its WWII setting. While the war disrupts daily life, daily life, and death, continues, with Detective Chief Superintendent Christopher Foyle (Michael Kitchen) keeping things safe for democracy on the home front. If you like mysteries, period pieces or just amazing acting and writing, I cannot recommend this show highly enough.
“Agatha Raisin” (Acorn TV)
Funny, sweet, candy-colored and contemporary, this fish-out-of-water tale follows Agatha (Ashley Jensen) as she transforms from London publicity agent to small-town sleuth.
“Wire in the Blood” (Acorn TV)
You will find Robson Green all over British streaming, including in “Grantchester” (see below) and several travel/reality shows. But as Tony Hill, police detective and serial killer expert, he helped set the template for the wounded sleuth whose own foibles make him great.
“Luther” (Amazon)
Idris Elba, who contracted COVID-19 but remains asymptomatic, is DCI John Luther, the man with the coat and a mission. Oh, and a very strange relationship with a murderer named Alice (Ruth Wilson). Things got a bit weird in Season 5 but it’s tough to beat “Luther” even on a bad day.
“Cracker” (BritBox)
Robbie Coltrane (best known now as Hagrid in the “Harry Potter” film franchise) plays a politically incorrect and delightfully cranky forensic psychologist turned crime solver.
“George Gently” (Acorn TV)
Not only a terrific police drama, starring Martin Shaw as the title character, “George Gently” also offers a look at 1960s northeast England, and while it is not always pretty, it’s always pretty thought-provoking.
“Law and Order: U.K.” (Amazon)
“Law and Order” with better accents, crazy wig-hats and, thank the Lord, Freema Agyeman.
“Unforgotten” (Masterpiece)
I will watch anything that stars Nicola Walker, especially a murder mystery series in which she and her partner, played by Sanjeev Bhaskar, solve cold cases in the most mesmerizing and emotionally charged way.