Confinement - An SCP animated series by Lord Bung

A Nihilistic immortal being named Connor is a subject in a giant facility containing unfathomable horrors hidden away from humankind A dark comedy focused on morality and beings known as SCP. The series follows Connor a young adult who seemingly cannot die although being killed in multiple gory fashions. He resides in a facility run by an unknown government funded organization that test on eldritch like monsters.

Ferdinand the Cannibal: I say! You're not an average chap like the rest of them, are you?

Connor: Not... technically, no...

Ferdinand: You're an abnormality. An SCP, like us! You belong here, with us!

Connor: No, no no no! I do not belong here with you! I am not a human atom bomb, I'm not a rapidly evolving virus, and I'm not a Shakespearean cannibal!

—Episode 1: "The Cannibal"

All Episodes

Sadly, the series was interrupted after the seventh episode (plus some extra) and doesn’t seem likely to resume anytime soon. Nevertheless, it’s an amazing series that I recommend to any SCP fan.

For more info - Tvtropes - Confinement | What Happened to Confinement?

Protect

The Foundation protects humanity from the effects of such anomalies as well as the anomalies themselves until such time that they are either fully understood or new theories of science can be devised based on their properties and behavior. The Foundation may also neutralize or destroy anomalies as an option of last resort, if they are determined to be too dangerous to be contained.