Mr. Popper
A painter and hopeless dreamer and romantic. He attempts to set up his own circus show with the penguins.
Mrs Popper
Wife to Mr Popper. She is very loyal to her husband but is the more sensible and realistic of the two.
Janie Popper
The 12-year old daughter who is devoted to her father and goes around the world with him.
Bill Popper
Twin brother to Janie and is pet-crazy.
Service Man
The man who comes in and converts the refrigerator into a household for the pets.
Captain Cook
The name of the first penguin sent to Mr Popper.
Admiral Drake
An idol to Mr Popper who explores penguins in polar regions. he sends Captain Cook to Mr Popper.
Greta
Female penguin and companion of Captain Cook after they meet at the aquarium.
