Not revealed until the final season of the show .
Anders is approximately two thousand years old , and was born as a member of the ill - fated Thirteenth Tribe , a group consisting entirely of Cylons who left Kobol and settled on the first Earth .
Although not revealed until the final season of the show , Anders is approximately two thousand years old , and was born as a member of the ill - fated Thirteenth Tribe , a group consisting entirely of Cylons who left Kobol and settled on the first Earth .