Frederick is a Caucasian baby with blue eyes and a few strands of hair.
It seemed silently content.
He was born at some point after the Nanite King had been defeated by Fred Jones, and the monster plague that came out of Project Elysium had been cured. Frederick represented the better part that came out of the nightmare that came from the years that Velma, Shaggy, and their friends had banded together to survive. Frederick was named after Fred and Velma's late brother Rufus T. Dinkley. Scooby-Doo and Daphne Blake were named his godparents. Also at the hospital was other members of their extended family, including Cliffy, Scrappy-Doo, Quentin Dinkley, and Daisy Dinkley.