History Trivia / ScoobyDooAndGuessWho

** Creator/CharlieSchlatter reprises the role of Franchise/TheFlash, though in a first, it's explicitly clear ''which'' Flash he's voicing: Barry Allen[[note]]According to promotional materials for ''WesternAnimation/SupermanTheAnimatedSeries'', ''that'' Flash was Barry's nephew and successor ComicBook/WallyWest, though it wouldn't be confirmed until ''WesternAnimation/JusticeLeague'', but by then, Schlatter was replaced by Creator/MichaelRosenbaum. WordOfGod is Barry's the Flash on ''WesternAnimation/TheBatman'', but it's not actually stated on screen, and ''WesternAnimation/JusticeLeagueAction'', ''WesternAnimation/BatmanUnlimitedAnimalInstincts'', and ''WesternAnimation/BatmanUnlimitedMechsVsMutants'' don't even state which Flash they're using, though they're believed to be Barry by fans.[[/note]]

** There is concept art for [[https://static.wikia.nocookie.net/scoobydoo/images/0/00/Mel_Brooks.jpg Mel Brooks]], [[https://static.wikia.nocookie.net/scoobydoo/images/e/e8/Dolly_Parton.jpg Dolly Parton]] and [[https://static.wikia.nocookie.net/scoobydoo/images/f/fb/KISS_(SDAGW)_art.png KISS]] that went unused.

* IKnewIt: The guest star appearances of other Hanna-Barbera properties such as ''WesternAnimation/TheFunkyPhantom'' as well as Creator/DCComics characters and public domain characters was expected due to previous ''Scooby-Doo'' and Hanna-Barbera media doing the same in the past.

** In the French dub, in addition to the current voice actors for the Scooby gang, Blue Falcon is voiced by Paul Borne, reprising his role from ''WesternAnimation/ScoobyDooMysteryIncorporated''. Also, several voice actors from previous DC Comics adaptations reprise their roles here:

* TalkingToHimself:
** In episode two, Creator/KateMicucci voices Velma and April from ''WesternAnimation/TheFunkyPhantom''. Additionally, Tom Kenny voices Augie and Mudsy in the same episode.
** In episode three, Frank Welker voices [[spoiler: Magilla Gorilla, albeit only in more realistic ape grunts this time around]] in addition to his usual roles of Scooby and Fred.
** "A Haunt of a Thousand Voices!" has the gang meeting their voice actors.

* SameContentDifferentRating: The show is fairly light-hearted as your typical ''Scooby-Doo'' show, yet it carries a TV-PG rating, a first for the franchise. However, HBO Max lists the show's rating as TV-Y7.

* MeaningfulReleaseDate: "What A Night For A Dark Knight", the episode where Batman guest-starred, was released two days before Batman's anniversary day, September 21, 2019.

* ScrewedByTheNetwork: In addition to receiving next-to-no reruns and the aformentioned InvisibleAdvertising, Cartoon Network just stopped airing the show after 6 episodes despite initial reports saying that episodes would air there a week after Boomerang and clips on days the episodes would have aired being uploaded. Fortunately, the show would eventually be added to Boomerang a little over a year later, with heavy advertising and much better timeslots.
** The series did return to Cartoon Network's lineup in October 2022 for Scoobtober however, and has been airing even after Scoobtober ended.

** In addition to Fred and Scooby as always, Creator/FrankWelker also reprises the role of [[spoiler: Speed Buggy]], who he previously voiced in [[WesternAnimation/JohnnyBravo "Bravo Dooby Doo"]] and ''WesternAnimation/ScoobyDooMysteryIncorporated''.
** Welker also reprises his role of Dynomutt.
** Creator/CharlieSchlatter reprises the role of Franchise/TheFlash, though in a first, it's explicitly clear ''which'' Flash he's voicing: Barry Allen[[note]]According to promotional materials for ''WesternAnimation/SupermanTheAnimatedSeries'', ''that'' Flash was Barry's nephew and successor ComicBook/WallyWest, though it wouldn't be confirmed until ''WesternAnimation/JusticeLeague'', but by then, Schlatter was replaced by Creator/MichaelRosenbaum. WordOfGod is Barry's the Flash on ''WesternAnimation/TheBatman'', but it's not actually stated on screen, and ''WesternAnimation/JusticeLeagueAction'', ''WesternAnimation/BatmanUnlimitedAnimalInstincts'', and ''WesternAnimation/BatmanUnlimitedMechsVsMutants'' don't even state which Flash they using, though they're believed to be Barry by fans.[[/note]]
** As per usual, Creator/JenniferHale, Creator/KimberlyBrooks and Jane Wiedlen reprise the roles of the Hex Girls.

* ChannelHop: The series was always meant to air on Boomerang, but repeats aired on Cartoon Network. However, Cartoon Network dumped the show after six episodes, and became a Boomerang exclusive. Then, for Season 2, it got heavily promoted as being part of HBO Max.

* ChannelHop: The series was always meant to air on Boomerang, but repeats aired on Cartoon Network. However, Cartoon Network dumped the show after five episodes, and became a Boomerang exclusive. Then, for Season 2, it got heavily promoted as being part of HBO Max.

* SameContentDifferentRating: The show is fairly light-hearted as your typical ''Scooby-Doo'' show, yet it carries a TV-PG rating, a first for the franchise.

* ChannelHop: The series was always meant to air on Boomerang, but repeats aired on Cartoon Network. However, Cartoon Network dumped the show after five episodes, and became a Boomerang exclusive.

* ChannelHop: After just six episodes, the series moved from Cartoon Network to Boomerang.

* MeaningfulReleaseDate: "What A Night For A Dark Knight", the episode where Batman guest-starred, was released two days before Batman's anniversary day, September 21, 2019.