A Captain is a type of guard who occurs in the objective rooms of some types of missions:

• All Detention Centers have a Captain, who is always initially stationary in the Detention Block. Due to a bug in the game, if he investigates a distraction and returns to his assigned tile, he will remain facing in the direction he walked to return there.
• A Captain occurs randomly in 25% of Security Dispatch missions, whenever there is a Courier rescue side-mission. If present, he initially patrols in and out of the interrogation room.
• A Captain occurs in one of the four possible Vault room prefabs. If present, he initially patrols between two fixed patrol points.

Captains do not occur in other mission types. When a Captain does occur, he is in addition to the number of guards normally present.