Colonel Saul Tigh

William Adama‘s long-time friend and former Executive Officer is a loyal but gruff and war-battered man. He has a weakness for strong drink and falls prey to his fierce temper. He carried on a lasting but strained relationship with his promiscuous and scheming wife Ellen, but executed her when he discovered she had been collaborating with the Cylons. When he realizes his identity as a Final Five Cylon, he has difficulty accepting his earlier actions.