None
5 of 6 found this to have none
None.
Moderate
3 of 5 found this moderate
Most of the fighting in the series involves shootouts and brawls. There are also some murder scenes.
Caine uses the martial arts, but the resulting violence is very mild.
None
4 of 6 found this to have none
Mild profanity.
Mild
5 of 8 found this mild
Characters smoke cigars and drink whiskey.
Mild
3 of 5 found this mild
None. The series overall is incredibly mature and thought-provoking.