Scooby Doo Easter Egg - Director' Family

The director of Scooby Doo the movie, Raja Gosnell let the rest of his family be in the movie at different parts.
His eldest daughter is in the first scene, just after the mystery machine came through the wall. She is at the front of the group of girls who run up to Fred for his autograph.
His wife and twin daughters are shown at the airport, when Scooby is dressed up as grandma. They are the family sitting down (i think the camera does a close-up of them).
His son is shown just after his wife. He is the ginger kid wearing the bag.