A few characters in season one cut, but not for self harm. They are using blood to attract a creature

There is a character who drinks too much, which can be considered a form of self harm.

No self harm but there is a scene at the very end where the group makes a blood pact, this scene involves the members making cuts on their hands with a knife.

No but there are signs of self- sacrificing tendencies

NO ONE self-harms in Harry Potter and the Philosopher's Stone (2001).

You can shoot an arrow directly up and have it fall back and damage you. Also you can light yourself on fire aswell as drink potions of harming.

The demon Hastur gnaws on his finger and draws blood on one occasion when he gets extremely angry.

There is a character who plots his own death and several mentions and depictions of self destructive behavior from other characters. If only self harm that is explicitly cutting one's self is what you're trying to avoid, then you're probably in the clear.

Zuko tries to get himself struck by lightning because he wants to practice redirecting it

There is no physical self-harm. I assume the votes for 'yes' are in reference to Freddie's self destructive drug and alcohol abuse.

towards the end of the movie someone shoots himself

kind of when it mentions that alexanders cousin killed himself a member from the company stood on the chair and acted as if he were hanging him self