He is Duckburg's most famous inventor. Even though his inventions don't always work the way he wants them to his intentions are always good. Gyro is often assisted by his (Little) Helper who is a small robot with a light bulb for a head. He appears as a semi regular on Duck Tales.
Some of Gyro's relatives include his father Fulton Gearloose, his grandfather Rachet Gearloose, and Newton Gearloose, his nephew. In some stories Gyro's primary rival is Emil Eagle although he is also antagonized by the Beagle Boys and Magica De Spell.
Gyro Gearloose is one of the many Duckburg inhabitants originally created by Carl Barks.