Yes.
The Olympians were known as the dodekatheon, or "twelve gods" in Greek. They are traditionally depicted as being the following:ZeusHeraPoseidonDemeterAthenaDionysusApolloArtemisAresAphroditeHephaestusHermes
There are twelve, six males and six females.
Heracles was the Greek hero who was noted for his strength and was required to perform twelve tasks.
Hephaestus, the god of the smith, made the twelve thrones.
Geyron had a stable Hercules had to clean as one of his twelve labors.
According to Greek Mythology, there is no 'Big Three', unless you mean in the Percy Jackson book series. They swore not to have any more demigod children.
The hero Heracles (Hercules) performed the twelve labors after being driven mad by Hera to kill his children.
He was one of the twelve Gods of Greek mythology who lived on Mount Olympus, north Greece.
In Greek mythology, he is one of the twelve major Olympian gods.
Apollo was created by the Greek god Zeus and the Titaness Leto. He is one of the twelve Olympian gods in Greek mythology, known for his association with music, prophecy, and healing.
There are twelve main gods and goddesses(the Olympians), but there are lots of other minor gods and goddesses in Greek mythology.