I cant get Andronikos Revel

Without more information, we can only guess,

read the quest description carefully and follow the steps there very accurate.

Andronikos Revel is the second companion  character of the Sith Inquisitor - a male bounty hunter  and assassin obtainable once the player has progressed the Inquisitor story missions to the beginning of tatioon  (after Nar Shaddaa). i cant get him for some reason 

To Help you, more information what happens to your Char where in the questchain you are.