|Affiliations||United Defense Force|
|Debut||Edge of Tomorrow|
Meeting with Vrataski Edit
After Verdun, Dr. Carter was contacted by Vrataski, telling her story. Carter believed her, but when he tried to bring this information to his officials and create a transponder, he was demoted to a simple mechanic and fired from Whitehall.
Meeting with Cage Edit
After finding out about Cage possessing the rewind ability, Rita brings him to Dr. Carter. The doctor and Rita explain the Mimic's biology and help Cage understand his new adopted power of resetting the day. Cage is told that he must continue the cycle of live/die/repeat until he has the "vision" of the Mimic Omega, the brain and command central of the Mimic horde. The presentation ends with Rita requesting to see Cage's fighting skills by fighting off robotic Mimic dummies.
After escaping the ambush at the dam, Cage, Vrataski, and Carter put the pieces together and figure out the visions: Vrataski's success in Verdun was all a ruse by the Omega Mimic. The Omega had let the humans win at Verdun in order to lure the humans into invading Europe, where all the human armies would be ambushed and annihilated. With no other leads, the device Carter made, which got him fired is their last chance. Vrataski and Cage switch focus to getting the device, which is at Whitehall in a safe in General Brigham's office.
After Cage succeeds in killing the Omega, Dr. Carter still works as a mechanic in FOB Heathrow.