Al Crenshaw

Al Crenshaw was part of Jack Bauer's team during Operation Nightfall. He was notable for wearing glasses throughout the mission.

Nightfall
Al Crenshaw was part of the undercover mission to kill Victor Drazen. He went though the forest with the rest of the team, and entered the house of David and Anna Petrovic after Bill Kendall and Ronnie Pope had secured the location.

He travelled to meet the Petrovics’ contact who would take them to Victor Drazen’s compound. Once they made it to the army base of the contact, Jack instructed Al, Ronnie and Bill to circle the checkpoint. He was noy in the car bomb, but helped Ronnie Pope, whose arm was broken from the attack. They travelled to the top of a building, and took out some guards that were still attacked Jack Bauer and the rest of the team. After that, they drove away with the contact, Jovan Tesla.

Whilst approaching a guard post, it became evident that the team would not be able to pass without arousing attention. Jack instructed Al to take out the guards. At around 3.15 p.m. Local time, he finds a good spot for Bill Kendall to shoot out Drazen's base, which happens without problem. However, the team are called back when they get word that Victor Drazen is still alive. Bill and Al are sent to get another look at the facility when they return. However, it seems that nothing contradicted their earlier evaluation when they return.

When Anna Petrovic shoots Ronnie Pope and Alexander Lepenski, Crenshaw hears the deaths. He goes to the location, and is shot by Anna. She tells Jack that some of Drazen's men killed them, but he eventually found out she was lying, and killed her.