Private First Class Tom Chalmers is a major character in Medal of Honor: Vanguard. He first appears in the first mission, Off Target, and is a member of Frank Keegan's squad and is described as the strongest in the team. He is killed during Operation: Market Garden when a Tiger tank assaults Keegan's squad.
- He is the only character in the game to not have his body fade away upon dying.
- He has a slightly larger build than the other NPCs.