Who said "Stitch is good. Bad dog, good dog."?

This quote is attributed to Stitch.

Stitch is good. Bad dog, good dog. - Stitch

"Stitch is good. Bad dog, good dog."

Stitch

"Meega like you. You nice."

"Ohana means family. Family means nobody gets left behind or forgotten."

"I'm sorry."

"This is my family. I found it all on my own. It's little, and broken, but it's good."