Koosalagoopagoop

Koosalagoopagoop, also nicknamed Koosy or Koos for short, is Dee Dee's imaginary friend who is a rainbow dragon-like creature from an imaginary world called Koosland. Dee Dee is always going into her room to go and visit him in his imaginary world, which she enters via a portal of pink hearts and magic that Koosy can open up or access from the heart-shaped marking on his stomach. He was voiced by Dom DeLuise.