Don Crumlin is a character in Cars 2. He is a Gremlin who works for Professor Z. He may have been on the Oil Rigs.
- His diecast incorrectly depicts him with green eyes.
- According to his diecast, his license plate reads WREKD, which is short for "wrecked" which is the same as Grem's and Tyler Gremlin's plates.
- On some websites, he is called "Russ Gremlin."
- Don Crumlin is named after Don Crum, a Pixar animator.
- Don Crumlin is the only Lemon whose surname isn't that of his make and model (interestingly enough, Fred Pacer was once known as Fred Fisbowski, and Petrov Trunkov was once known as Petrov Oilski).