The ancient Greek Gods did not have second (or family) names.
Mars Candybars
ZeusHermesCronusPsycheHephaestusDemeterGaeaAphroditeHadesPoseidonApolloAresArtemisAthenaDelusionEileithyiaFury/FuriesHebeHeraIrisLetoMuseOceanStrifeThetisTitansXanthusNikeNemesisDionysusErisErosHephaestusPersephoneHestiaHebeHeliosThanatosHerculesMorpheusHecatePan
no!
Greek gods, and goddesses drank wine.
It's impossible for a mortal to become a God
Roman gods and goddesses are pretty much the same, they just have different names.
Greek gods/goddesses did not have "last names" they had titles/epithets.
There are twelve main gods and goddesses(the Olympians), but there are lots of other minor gods and goddesses in Greek mythology.
Greek mythology came first. Then the Romans came. They admired the gods and goddesses of the Greeks and copied. The Roman gods and goddesses and more disciplined and war-like. Because Greek and Roman mythology things can't have the same name, Romans changed the names.
no they had special powers
There were no Greek gods that had names starting with 'v'; however, there were several Roman goddesses such as 'Venus' and 'Vesta'.
Here are some of the Greek gods and goddesses (feel free to add to this list):ZeusPoseidonHadesHeraAthenaHestiaArtemisAresHermesKronosDemeterPersephoneAphrodite