- Real name: Benjamin Lockwood
- Identity: Secret
- Alignment: Good
- Affiliation: Justice League; C.I.A
- Gender: Male
- Hair: Brown
- Citizenship: American
- First appearance: Superman vol 2 #60 (Oct 1991)
- Appearance of death: Action Comics vol 1 #873 (Mar 2009)
- Universe: New Earth
- Alternate versions: none known
Ben Lockwood was an operative of a C.I.A. anti-terrorist mission that went wrong. He ended up stranded in hostile territory for several months. When he returned to America, his former Bureau chief recommended that he join a well-funded team of patriots called the "Sons of Liberty". There, he became known as Agent Liberty, and was given access to high-tech weaponry and a helicopter team to cover him on high-risk missions. On one of his first missions he took down some Intergang members with Superman.
Ben quit the Sons of Liberty when he was ordered by the organization to assassinate Senator Pete Ross. Not only did he refuse, he killed his former mentor and sent classified information to Clark Kent of the Daily Planet.
Agent Liberty is seen in Cadmus and overhears Gen. Lane and Lex Luthor talking. They talk about ways they might bring war to New Krypton. They discuse Doomsday and the Creature Commandos. They also talk about how the original Kryptonexploded, and about killing Superman slowly. It sounds like they are planning an offensive strike. Unfortunately, Agent Liberty is discovered by Superwoman who quickly kills him by a heat vision lobotomy.