She is a blue hippo with 2 wrinkles on each her legs.
She is usually very kind and nice to the other animals. She is also kind in helping Lucy get ready for the next day before the story starts.
- The Story of Nelson the Elephant (first appearance)
- The Story of the Jungle Clearing (no lines)
- The Story of Gary the Dromedary (one line only)
- The Story of Esmeralda the Snake (2 unheard lines only)
- The Story of Hercule Mustache (2 unheard lines only)
- The Story of Annie the Anaconda (last appearance)
- Molly is the first semi-aquatic animal in the series.
- The first time Molly has appeared in a story setting was in Episode 6.
- She is the only female hippo to be given eyelashes.
- She is the second character to have a nephew (in this case, Eddie). The first is Dennis with his nephew Gary.
- Despite being friendly, hippos in real life are very unpredictable and dangerous. Hippos are considered among the most dangerous of all the animals in Africa.