Lars Tremont was the leader of Project Ares.
After hearing Chris Bolling and Paul Kendrick's report on Erica Evans being Fifth Column and believing the Visitors are more than they seem, Tremont kidnapped Evans and brought her to an underground bunker that housed the members of Project Ares. Tremont introduced himself to Evans, and although putting her in a interrogation chair; he let her out and told her they know everything she knows and introduced her to Paul and Chris who were members of Project Ares. Tremont then informed Erica of the strange readings on people that were blissed by Amy. ("Mother's Day")