Goldie is Franklin's pet goldfish. She debuts in the episode "Franklin Wants a Pet."
Franklin decides on getting Goldie as a pet after carefully considering and rejecting a number of other ideas for pets. He enjoys watching her swim around.
In Franklin Goes to School, on the morning of his first day of school, Franklin bids goodbye to Goldie, showing he acquired her before starting school.
In "Franklin's Visitor," when Franklin suspects that Goldie might be lonely, he introduces a new fish into her bowl. The new fish, however, eats all of her food and Franklin eventually realizes they are not a good match.
In Franklin's Magic Christmas, Bear takes care of Goldie when Franklin and the Turtle family go away to Faraway Farm to visit Franklin's grandparents.
Harriet and Franklin with Goldie
In "Franklin Forgives," Harriet accidentally knocks over Goldie's bowl at the edge of the pond near the Turtle family home during a picnic. Franklin is very upset and refuses to forgive her for a long time, but eventually does so when she tries to search for Goldie on her own and he realizes just how terrible it would be to lose her. Goldie is returned to Franklin by Beaver, who discovers the fish swimming outside her home.