|Family||Mrs. Halibut (mother)|
|Game(s)||Freddi Fish and the Case of the Missing Kelp Seeds|
Gabby is Mrs. Halibut's little guppy.
Gabby is a small purple fish with blonde hair and a red cap.
In all games, Gabby is trapped under a rock pile in a small cave. Mrs. Halibut can't get inside because she is too big, so she asks Freddi Fish and Luther for help. Going inside, they find the rock trapping Gabby down is too big to budge. After Freddi and Luther use a wooden board to pry the rock off and free Gabby, mother and son are reunited. As a reward for saving her son, Mrs. Halibut gives the duo a purple sea urchin before they leave.
Gabby and his mom are later shown as Freddi and Luther take Grandma Grouper's Kelp Treasure back to Grandma Grouper, but only if the player has Freddi and Luther save him. If not, that segment is skipped.