Kent Fuller is an agent with the Drug Enforcement Administration or DEA who assisted Gibbs and his team in investigating the case of a deceased Navy Commander who was possibly involved with two dead drug dealers that were found three miles north of the Commander's body. It was later found out that the two incidents were not related as the Navy Commander was shot by a terrorist and not the drug dealers. Agent Fuller was shown to have a weak stomach as shown when Ducky began an autopsy and as such, the agent abruptly excused himself.