Mr. Leech’s speech and appearance from “That’s Snow Ghost” suggest Peter Lorre, who starred in the aforementioned film as Joel Cairo and where Sydney Greenstreet (Kasper Gutman) made his film debut.
The scene where Scooby and Shaggy lock themselves in a hut, Scooby throws the key out the window only for the ghost coming in through the other door, resulting in Shaggy and Scooby leaping out the window to retrieve the key and hop back in in order to unlock the door can be traced back to a scene from an episode of Bugs Bunny called “Buccaneer Bunny.note It’s when Bugs rows a boat, which is tied to shore and is propelled back but Bugs treads water anyway, to Pirate Sam’s ship. Sam boards the boat but sees the oars on the ship stairs. So he swims out to the ship, retrieves the oars, swims back to the rowboat and rows his way to the ship.
Episode title is a play on the phrase “dynamic duo,” which was how both Batman and Robin were popularly known at the time.
The zooming Batman logo that changes scenes are taken from Batman’s solo-based segments from Superfriends with said Batman logo spinning in a blink of an eye.
“Wednesday is Missing”
Scooby’s comment of “I ate the whole thing” after downing what he thinks is Grandma Addams’ soup comes from the “I can’t believe I ate the whole thing” TV advertising tagline at the time.
In order to make the sheriff laugh, Fred and Velma do an impression of Laurel and Hardy.
Also, both town name “Juneberry” and Sheriff Dandy Griffith is based off fictional town “Mayberry” and Sheriff Andy Taylor. It’s also worth noting that Don Knotts, who appears in this episode, plays a character similar to Deputy Barney Fife.
“The Haunted Horseman of Hagglethorn Hall”
When the gang meets Davy Jones, he says “I’ve never played for a frog before, just monkeys.” Jones was a part of The Monkees.
An alternate animated opening had cartoon versions of the gang, Three of the monsters the gang dealt with (the Creeper, Frankenstein Monster & Shadow Phantom) appear as well.
Daphne fights like Buffy Summers toward the end of the movie.
Upon Scrappy being thrown out of the Mystery Machine during Velma’s flashback:
Scrappy: You can’t do this to me! People adore me! (kicks suitcase) Ow! (Jumps on one foot) I’m as cute as a Powerpuff girl!
When Scooby tries to escape the monsters using a suitcase as a disguise, he says “Run, suitcase, run.”
While in Wickles mansion, the gang finds a Celtic book with names written on the first page. Among them are Harry Hausen[[labelnote:*]]a nod to pioneer of stop-motion animation monsters Ray Harryhausen, Munster Mash and Werner Brovas. When Sahggy and Scooby decide to be ‘real detectives,’ they tell the rest of the gang to turn the investigation up to an eleven.
Shaggy and Scooby defeats the Cotton Candy Glob by eating him off-screen like how the Cheese Monster was defeated by Scooby.
As stated on the side of the school buses, Coolsville High is in school district #1969, the year Scooby Doo Where Are You premiered.
Last name of Coolsville Academy’s founder Prudence Prufrock is derived from T. S. Eliot’s poem, The Love Song of J. Alfred Prufrock.
The opening song for Whats New Scooby Doo is played during the end credits, though the song was recorded by Anarbor, instead of the one recorded by Simple Plan from the TV show.
Also during the credits, several scenes from Scooby Doo Where Are You opening credits such as Freddy falling backwards into a bookcase, a hand trying to grab Daphne as she walks by and Captain Cutler’s ghost appear, though in live action.
There’s also the sillouhette of the gang running against three strips of colored background much like the opening of Whats New Scooby Doo.
The giant check the gang receives from Daphne’s uncle was drawn on an account ‘The Bank of Hanna Barbera.’
Little over thirty-eight minutes into the movie, Daphne, Fred and Shaggy run into each other in front of a clothing store, two mannequins clothes in the traditional Fred and Daphne appeal are visible in the store front. Fred even wears his cartoon counterpart’s attire.
