This is the only episode of the series that doesn't include Fred, Daphne and Velma, and it's the first time that the trio has been absent from a "Scooby-Doo" episode since the 1980s. (They were also absent in Scooby-Doo in Arabian Nights (1994), a special event.) The next Scoobyverse incarnation, Shaggy & Scooby-Doo Get a Clue! (2006), used this pattern, with the trio showing up only on occasion.
Counselor Grey is voiced by Tara Lipinski, an Olympic figure skater turned actress. Lipinski later voiced herself in Scooby On Ice! (2020).