(Capcom's primary storyline)
Sgt. Neil Carlsen was an officer of the Raccoon Police Department. During a patrol on September 20, 1998, Carlsen interrupted an Umbrella Security Service operation in the sewers, and recovered C4, which was placed in the Raccoon Police Station's confiscation room and later used by Claire Redfield. Carlson's status following the Raccoon City Destruction Incident remains unknown.
- Neil's desk can be found in the west office in the 2019 remake.