Male
Robert Stack can be seen using the following weapons in the following films and television series:
| Character | Firearm | Notes |
|---|---|---|
| Jim Beckley | Colt Detective Special | - |
| Jim Beckley | Unique Rr 51 | - |
| Character | Firearm | Notes |
|---|---|---|
| Gen. Edwin Sibert | M1911A1 | Seen only in holster |
| Character | Firearm | Notes |
|---|---|---|
| Eliot Ness | M1928A1 Thompson | - |
| Eliot Ness | Colt Official Police | - |