Gavin is a Dino-bird and the (former) main antagonist of Blue Sky's 11th animated feature film, Ice Age: Collision Course. He is the father of Roger and Gertie. He is voiced by Nick Offerman, who also voiced Metalbeard from The Lego Movie, Norman in the 2016 musical film Sing, and Marshal Weedon Scott in the 2018 animated film adaptation of White Fang.
Gavin is a blue Dino-bird with red feathers, a black beak and greenish yellow eyes.
He also has a blue body and teal-blue scales and a blue underbelly.
- Gavin is the only main antagonist in the Ice Age franchise that reformed.
- Gavin, along with Gertie and Roger, were the first dinosaurs to move to the Herd Valley.
- Gavin was received negatively by the critics who considered him the "worst Ice Age villain" for him having no originality and his redemption.