He is the pet of Elroy Jetson. Astro has a flair for dramatics and is not ashamed to cry for attention. His main form of exercise comes from walking the floating treadmill outside of the Jetsons' house and attacking George Jetson whenever possible. Astro was once the dog of the millionaire J.P. Gottrockets, but finds the simple life with the Jetsons much more appealing.
- Astro weights 115 pounds and is 5'9" tall.