Because of Velma's clown "allergy" (phobia) and Shaggy's determination to golf, they effectively switch roles and personalities during this case; Shaggy is the smart, brave, and bold one (qualities also similar to Fred), while Velma is the "scaredy cat" and hungry.
Velma's fear of clowns did not exist in any previous incarnation of the Scoobyverse.
Miranda Wright shares her name with a character from the Disney animated series Bonkers.