Dave Walton is a border guard, and Velma Dinkley's uncle.
Davis is a middle-aged, Caucasian man with brown hair and a mustache.
Dave takes his job as a border guard very seriously protecting the border, and is very adamant about taking care of what all goes on there.
The Scooby-Doo Show
When he heard of Grey Fox's plot of smuggling stolen stuff into Canada, he was on his trail to take him down. While he was eating his dinner, Grey Fox sent the Owlmen to kidnap him. He was rescued by Red Herron, who took Grey Fox and the Owlmen to the council of elders for punishment.