Rex

A clone that wasn't as powerful as Sixes or CT-6969, who both saw him as the unofficial Mascots for the feeble clones - where Rex was bound by the constraints of the normal human capsule, Sixes, CT-6969, and Fours had ascended beyond anything the mortal mind can comprehend.

Rex also tried to genetical modify a embryo clones into a female, resulting in the creation of 99. This lead to him being demoted to managerial on Tipoca city.

Rex then defected in 20BBY, his whereabouts are unknown.