Katelyn May Schwartz (born February 19, 2002) is the daughter & middle child of Cathy and Steve, the older sister of Emily and the younger sister of Samantha and Amanda.

She was shown to still be in diapers & wasn't potty-trained yet. Like Amanda and Samantha, she was seen acting out, by running around the house, screaming, and rough housing.

Katelyn was 3 years old at the time of her appearance on Supernanny and as of 2018, she is 16 years old.


  • "Gimme my milk!"
  • "I WANT A COOKIE!!!"
  • "NO, MY car!"
  • "Yes!!!!"
  • NO, MY CAR!"
  • "I don't want to poop in my pants!"