Gill and his mate, Fathom, made a nest in an underwater cave under Huttsgalor, where Fathom laid three eggs. During the events of "Divewings", a large amount of trash that was dumped into the sea ended up in her nest and endangered her eggs. Gill started attacking boats from Huttsgalor along with Fathom, in an attempt to stop it. His attack was intercepted by the Rescue Riders, who stopped him and Fathom. The two returned to their nest, but they were followed by the Riders. Leyla and Summer entered the cave quickly afterwards, but were chased out by Gill and Fathom. All the Riders then entered the cave, where Gill explained the situation to them. The Riders offered to help him clean the cave and find the culprit, to which Gill agreed. He persuaded Fathom into acknowledging that not all humans were bad. Upon finishing, he exited the cave along with the others and discovered more trash floating on water and getting close to her nest. Fathom accused Leyla and Dak of lying so she and Gill attacked Elbone's ship (who turned out to be the culprit), but could not stop the litter threatening the nest. Dak then had an idea and, with the help of Gill, Fathom, and Summer, used fishing nets to catch the trash. Gill and Fathom then thanked the Rescue Riders and forgave Elbone. They returned to their nest.
Gill is turqoise with teal stripes and spots all over his body. He has dark golden wings, head, legs, and tail, as well as light blue eyes. He has a single yellow spine on his back, at the base of his tail.
Gill is much calmer and more peaceful than his mate, Fathom. He tries to solve problems by talking, rather than by brute force. He often has to calm down Fathom when she overreacts. However, he still folows her orders, suggesting that she has some sort of power over him.
|Rescue Riders, Season 2|
|1. "Double Finked":||Absent||7. "Hot, Hot, Hot":||Absent|
|2. "Divewings":||Appears||8. "High Anxiety":||Absent|
|3. "Mecha-Menace":||Absent||9. "King Burple":||Absent|
|4. "Summer Holiday":||Absent||10. "Charged Up":||Absent|
|5. "Treasure Riders":||Absent||11. "Belly Flop":||Absent|
|6. "Puff Enuf":||Absent||12. "Game of Horns":||Absent|
|Dragons: Rescue Riders Other Media|
|1. Dragons: Rescue Riders: Hunt for the Golden Dragon:||Absent||2. Dragons: Rescue Riders: Secrets of the Songwing:||Appears|