When Hopper and Henry are trapped underground in the mines, Pongo manages to sniff out an air shaft that is able to be used to rescue them both. Later, Miss Ginger calls the sheriff station and is concerned that there is a prowler around her house, although Ruby insists that it is just Pongo.
Pongo witnesses Cora Mills, while disguised as Regina, murder someone who appears to be Hopper. Emma Swan manages to look into the dalmatian's memories and witness this as well, thinking that Regina killed Pongo's owner. However, not only did Regina not kill Hopper, neither did Cora. She simply killed a random citizen and disguised the corpse as Hopper's, then took Hopper captive so that Captain Hook could interrogate him. When Hopper escapes Hook's ship, he and Pongo are reunited.
Cruella De Vil later controls Pongo and uses him to lure Henry to her, in order to use him as a hostage. When Henry tries to run away, she has Pongo chase after him. Her spell on Pongo breaks upon Cruella's death.
Hopper takes Pongo for a walk through the woods when he goes to see Emma about her problems. Pongo is also present when Hopper and Emma stumble across the Oracle's corpse.
- Archie Hopper (owner)
- Pongo is based on the dog from the story The Hundred and One Dalmatians.
- S1, E01: "Pilot"
- S1, E02: "The Thing You Love Most"
- S1, E05: "That Still Small Voice"
- S1, E13: "What Happened to Frederick"
- S2, E10: "The Cricket Game"
- S2, E11: "The Outsider"
- S2, E17: "Welcome to Storybrooke" (flashback)
- S4, E18: "Sympathy For The De Vil"
- S6, E01: "The Savior"
- S6, E05: "Street Rats"
- S6, E17: "Awake" (flashback)