Despite being the shows primary protagonist, Jack Bauer is seen to be ruthless and will stop at nothing in getting the answers he needs. Showing some violent confrontations.
Many shootings in season 5, some blood is seen but mostly on the nearby walls.
Some stabbings and shootings are shown, Jack is shown punching and beating up people quite a lot.
The main character Jack Bauer has a recorded 233 kills across the seasons with 4/5 kills as a result of gunshots and nine kills from season two onwards as a result of neck breaking.
The shooting scenes usually do not show blood explicitly and usually has the person just fall to the ground.
For a brief overview suspect are interrogated usually are injected with a type of chemical that induces pain.
Some of the more "extreme" episodes feature viral outbreaks, plane crashes, toxic gases, hostage takings, and nuclear detonations.
We see several bloody bullet holes in various parts of peoples' bodies.
A man kills multiple people with a sniper, no blood is shown.
A man slides a knife into another man's kneecap.
A man is graphically shot in the head with a sniper rifle.
A man's arm in amputated offscreen.
In season 8, we see some bloody images of people that Jack has shot and killed.