|Occupation||Director of Defense Intelligence|
|First Appearance||Patient Zero|
|Portrayed by||Nick Searcy|
Greg Carter is the director of Defense Intelligence.
In Patient Zero he appears on a video conference with the heads of FBI, Homeland Security, CyberCom and National Intelligence. When Lillian mentions clockwork he is interested to know more about it. But Lillian says it is just a code name. Lillian tells him that they have traced a phone call back to Pentagon and believes someone in Pentagon is responsible for the virus outbreak in Texas he thanks her for coming to him and tells her that he will take care of it. When he is in the elevator he calls someone and tells them they should find him before Lillian Strand's people does. He is in a control room somewhere and orders his men to bring Luther back and take care of the collateral meaning Gabriel and Riley. Later CyberCom soldiers come and arrest him. He asks them if they know who he is. To which Lillian answers she do. She comes in with Jameson and Weatherly. He tells her now they can make a vaccine and they'd be ready for an attack like this in the future. He says that the monsters are at the gate to which Lillian replies that the monsters are right here. He is led away by the soldiers.