Who are all the cylons in BSG?

Answer 1

Number Six
Boomer/Athena
D'ana
Brother Cavil
Not sure what his name or designation, was, black doctor when Starbuck was in one of the Cylon "farms"
The one they picked up on Ragnar station
The one that did a suicide bombing on Galactica
Chief Tyrol
The President's Aide
Colonel Tigh
Starbuck's ex

Answer 2

The Cylons were created by Man.
They were created to make life easier on the Twelve Colonies.
And then the day came when the Cylons decided to kill their masters.
After a long and bloody struggle, an armistice was declared.
The Cylons left for another world to call their own.
A remote space station was built...
Where Cylon and human could meet and maintain diplomatic relations.
Every year, the Colonials send an officer...
The Cylons send no one.
No-one has seen or heard from the Cylons in over forty years

Answer 3

Lets see..

There's Six. (smokin' hot blonde Cylon) who has 2 or more incarnations, including one inside Baltar's head.

There's brother Cavil, who, I think was the sidekick on "Quantum Leap" years ago...

There's that "Zena, Warrior Princess" lady, although I cannot remember her character's name...

There's the super cute asian chick that shot Adama and then switched sides. (again, name??)

I think there was one that we only met once, and he was thrown out an airlock...(might have been brothe Cavil...)

Then there are the so-called Cylon Gods, who didn't even know they were Cylons until they started hearing Bob Dylan music in their heads...

Colonel Tigh
Tyrol
The straight-haired brunette chick,
one I can't recall.

One un-discovered Cylon remains.

May be Starbuck. May be Baltar.

This is incomplete, but I slept since that show has been on hiatus.