Detective Olson
| Played by | Allan Louis |
| Name | Olson |
| Occupation | Police detective |
| Residence | New York, NY, USA |
| Affiliation | New York Police Department |
| First appearance | “Judgment” |
| Latest appearance | “Shadow Box” |
Olson is an NYPD detective. He occasionally shares ceses with Fusco and gave him information on Cal Beecher.