His birth index:

First name(s)       ANTHONY C
Last name           MEWS
Birth year          1930
Birth quarter       4
Mother's last name  Purefoy
District            Witney
County              Oxfordshire
Country             England
Volume              3A
Page                1805
Record set          England & Wales Births 1837-2006

It is highly likely that his surname was later changed to Purefoy.
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This looks like his (first?) marriage:

First name(s)       ANTHONY C
Last name           PUREFOY
Marriage quarter    1
Marriage year       1955
MarriageFinder      ANTHONY C PUREFOY married
                    Shirley C Taylor
Spouse's last name  Taylor
District            Wincanton
County              Somerset
Country             England
Volume              7C
Page                805
Record set          England & Wales Marriages 1837-2005

And they look like having had had these children:

Last name  First name  Born  Died  Event    Location

Purefoy   Georgina M F  1956  —    1956   North Bucks, Buckinghamshire
Purefoy   Fiona C L     1959  —    1959   North Bucks, Buckinghamshire
Purefoy   James B M     1964  —    1964   Taunton, Somerset
Purefoy   William       1967  —    1967   Weymouth, Dorset

The third of these is an actor and director and a Wiki site for him confirms this parentage.
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And this could be a second marriage:

First name(s)       ANTHONY C
Last name           PUREFOY
Marriage quarter    4
Marriage year       1975
MarriageFinder      ANTHONY C PUREFOY married
                    Doreen Whitehead
Spouse's last name  Whitehead
District            Wandsworth
County              London
Country             England
Volume              15
Page                0780
Record set          England & Wales Marriages 1837-2005
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His electoral roll entry, from 2002 to 2021:

First name(s)      Anthony Chetwynd
Last name          Purefoy
Year               2002-21
Street             Elgin Road
Town               Weybridge
County             Surrey
Country            England
Postcode           KT13 8SW
Age guide          65+
Address            Conkers, Elgin Road, Weybridge, Surrey, KT13 8SW
District           Weybridge
Occupancy (years)  31
Electoral rolls    2002, 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019, 2020, 2021
Company director   Yes
Record set         UK Electoral Registers & Companies House Directors
Category           Census, land & surveys
Subcategory        Electoral Rolls
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His probate index:

Surname  First name      Date of probate  Probate number    Date of death     Document type   Registry
Purefoy  Anthony Chetwynd  16 May 2021    1616757553553008  05 February 2021  Grant and will  Principal
                                                                                              Registry
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