Not persons. Hypostais is not a "person." Modalism comes form the Latin mistranslation of Greek into persona, which in Latin means a mask. Thus, some Latin Chirtsians believed God was merely carrying different masks as he revealed himself. Unfortunately, western Christianity never corrected the mistranslation and so "persona" became a theatrical term in English, while the Greek term hypostasis became a "person."
Literally, hypostasis (sub+stasis) means something that stands on its own, i.e. sub-stantia, something that exists on its own, in Greek o ΩΝ (literaly the existence), a self existing or hypostatic reality. There is no personality imputed or implied in it. It's an insult to God to call him a schizophrenic deity, a multiple personality God.
Of course, Latin managed to complicate things further by (illogically) incorrectly translating ousia into substantia (or substance, matter), further corruption the concepts, especially given the fact that ousia in Greek means essence or nature and not necessarily matter.
Do you know how many of your posts are founded on the "mistranslation of Greek?"
You've told us dozens of times you don't believe the Bible, so what difference does Greek make if even the Greek is predicated on error?
Does that mean that the Latin Vulgate, which the Roman Catholic church uses and has used, for it’s translations of the Bible are inadequate?
The Protestant Bibles, which the Catholics seem to be so quick to condemn, are translations of the oldest and most reliable manuscripts, not translations of a translation, being English from Latin from Greek/Hebrew.