Final answer:
In the TV show The Office, in season 4 episode 1 titled "Fun Run", Dwight mercy kills Angela's cat named Sprinkles.
Step-by-step explanation:
In the TV show The Office, in season 4 episode 1 titled "Fun Run", Dwight mercy kills Angela's cat. The cat's name is Sprinkles. Dwight believed that Sprinkles was sick and suffering, so he decided to put her out of her misery.