D-5700 is a Class-D personnel that is used for testing SCPs, commonly Euclid or Keter-class. He was kidnapped by the SCP Foundation. Hes a very sarcastic person but isnt rude. Most of his off hand comments are ignored by Staff. Treats his dangerous testing situation with a nonchalant attitude and often jokes around. He is rather intelligent,he can decipher the foundations many secrets. However, he doesn't appear to care about any of them and tends to slack off whenever possible. Even in danger.