Next is a rather bold assumption, but maybe it’s also the same guy as Anton Serov: https://www.thenude.com/pts_Anton Serov_33.htm
Why? The same Serov looks suspiciously like a bad transliteration of Серёв (Seryov) the way one often sees with Slavic names. Серёв has its root in the word серый (seryj), which means "grey".
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In my opinion, it is relatively safe to assume that Antony Grey, Anton Grey and Anthony Grey is the same person:
http://www.thenude.eu/pts_Antony Grey_948.htm
https://www.thenude.com/pts_Anton Grey_1303.htm
https://www.thenude.com/pts_Anthony Grey_1319.htm
And I also believe that Antony may be the same person as well (he also worked for Zemani):
https://www.thenude.com/pts_Antony_832.htm
Next is a rather bold assumption, but maybe it’s also the same guy as Anton Serov:
https://www.thenude.com/pts_Anton Serov_33.htm
Why? The same Serov looks suspiciously like a bad transliteration of Серёв (Seryov) the way one often sees with Slavic names. Серёв has its root in the word серый (seryj), which means "grey".
By the way, it seems that Антон Серов (Anton Serov) is the correct form, if it is really his name.
OK NAC30, info added.
Thanks very much.