| Actor | Character | Firearm | Notes |
|---|---|---|---|
| Boris McGiver | Mr. Greene | Steyr SSG 69 | "Pilot" (S1E01) |
| Delroy Lindo | FBI Special Agent Latimer King | Glock 17 | - |
| Desmond Harrington | Kenneth Cantrell | Smith & Wesson Model 66 | "Special Delivery" (S1E02) |
| James Urbaniak | The Accountant | SIG-Sauer P232 | "Pilot" (S1E01); suppressed |
| Jeremy Sisto | Lucian Knapp | SIG-Sauer P228 | - |
| Jeremy Sisto | Lucian Knapp | Browning Hi-Power | - |
| Linus Roache | Special Agent Andrew Archer | Glock 17 | - |
| Mädchen Amick | Gutman | Glock 17 | - |