- There are many portrayals of drug use throughout the series.
- All the characters, especially Thomas Shelby, are constantly smoking cigarettes. Constantly is a very light word, for the amount of smoking shown in screen.
- Use of cocaine is quite common.
- Tommy and others are seen smoking Opium throughout the series as a coping mechanism.
- Smoking, drinking and drunkeness are portrayed in many settings.
- We see Finn Shelby sniffing cocaine in Season 3. Shown Briefly.