Roberts

Roberts was a field agent at CTU Los Angeles active during Day 2.

Day 2
Jack Bauer led an assault team to the address revealed by Nina Myers to arrest Syed Ali and prevent the nuclear bomb from detonating in Los Angeles. When the team arrived, they discovered a man they believed to be Ali holding Kate Warner hostage in the bathroom.

Bauer called for the bullet-proof shield to get into position so that he could get a good shot at the hostile, and Agent Tom Baker radioed for Roberts to bring in the body bunker.

Roberts, holding the shield, was first to enter the bathroom with Bauer right behind him. Mohsen fired at the agents, but his bullet ricocheted harmlessly off the shield. Bauer then stepped out from behind the shield and shot Mohsen in the arm he was using to hold his gun. Seconds later, Mohsen committed suicide by a cyanide pill hidden in his tooth.