Zachary Hale Comstock is the leader of The Founders and the antagonist of BioShock Infinite. An alternate version of Booker DeWitt, he changed his name after being baptised by Preacher Witting to clear his past crimes at the Battle of Wounded Knee.
In order to continue his bloodlines rule of Columbia, the sterile Comstock ordered Robert Lutece to return to his own reality and steal the Anna DeWitt. Renamed Elizabeth, she was rejected by Lady Comstock and Monument Island was built to house her.