Quatermass

For the record, and because Quatermass has cropped up twice in todays posts, note from the Quatermass Xperiment wiki page: 

• ...  based on the 1953 BBC Television serial The Quatermass Experiment written by Nigel Kneale

 And so let's check out The Quatermass Experiment and Quatermass II wiki pages re cast/crew:

Original release	18 July – 22 August 1953

• Rudolph Cartier (17 April 1904 – 7 June 1994)
• Judith Kerr ( born 14 June 1923)
• Reginald Tate (13 December 1896 – 23 August 1955)
• André Morell (20 August 1909 – 28 November 1978) 
• Henry Wilfrid Brambell (22 March 1912 – 18 January 1985) 
• Duncan William Ferguson Lamont (17 June 1918 – 19 December 1978)
• Bessie Kate "Katie" Johnson (18 November 1878 – 4 May 1957)
• Rupert Davies  (22 May 1916 – 22 November 1976) 
• Hugh Emrys Griffith (30 May 1912 – 14 May 1980)
• John Robinson (11 November, 1908 – 6 March, 1979^[1]) 
• Roger de Delgado Torres Castillo Roberto (1 March 1918 – 18 June 1973)
• Melvyn Hayes ( 11 January 1935) 
• Gustav Theodore Holst ( 21 September 1874 – 25 May 1934)
• Cecil McGivern (22 May 1907, Newcastle – 30 January 1963,

Many of the dates stand out: June 14 is the birthday of President Trump; June 7 is the birthday of Trish MacGregor; August 20 is my fathers birthday; December 13 is also the day of my car crash in 2000,the pivotal event in my life that enabled me to become aware of the inner twin world.

I would say that the "May 22(x2)" pattern-cluster is the most prominent... not to mention that it's one off from May 23, the day of the year where 222 days remain, and note from my earlier post today:

• Roger Alexander Deakins (born May 24, 1949)

So using the formula... and then a little bit of a stretch for the "one off" curve ball:

• Gaspar Schott (5 February 1608 – 22 May 1666)
• Thurl Arthur Ravenscroft (February 6, 1914 – May 22, 2005) 
• Lee Jong-wook (12 April 1945 – 22 May 2006)

And so we now have a "February __, 5, 6, __/ Date Sequence" pattern-cluster... and cutting to the chase:

• Sigvard Oscar Fredrik Bernadotte (7 June 1907 – 4 February 2002)
• Robert Wesley Troup Jr. (October 18, 1918 – February 7, 1999)