History WMG / ScoobyDooAndGuessWho

* WebVideo/{{JackSepticEye}}

* LetsPlay/{{JackSepticEye}}

* LetsPlay/{{Markiplier}}, since he's a Let's Player most well known for playing [[HorrorVideoGames Horror Games]]. They could even make the MonsterOfTheWeek for him and the gang to face Video Game-themed villains.

You can't expect Mark Hamill to be in your show then have a Batman episode where Kevin Conroy voices Batman and Joker is voiced by someone else like Troy Baker.

* Superman. After the Batman, Wonder Woman, and Flash episodes, it's surprising he hasn't been shown yet. Bonus points if we get Tim Daly or George Newbern back, just like how Kevin Conroy and Mark Hamill came back for as Batman and the Joker.

* We ''do'' see her unmasked and tossed in jail during the classic-mystery-busting montage in the Flash's episode, in which she was dressed as the Witch from ''Where Are You'''s the thirteenth episode.

* ''WesternAnimation/YoungJustice''. The creators of ''Young Justice'' have tried pitching a crossover between both entities (one of the creators, Brandon Vietti, worked on some of the ''Scooby-Doo'' movies and got some of the Team's girls to cameo in the first WWE crossover movie), and ''Young Justice'' is coming back, so now's their chance.

[[WMG: A future episode will have the Speed Bugs as proper guest stars and the Funky Phantom gang arriving just too late to help with the mystery as a CallBack to the two groups earlier appearence]].

* We ''do'' see her unmasked and tossed in jail during the classic-mystery-busting montage in the Flash's episode, in which she was dressed as the Witch from ''Where Are You'''s thirteenth episode.

You can't expect Mark Hamill to be in your show, then have a Batman episode where Kevin Conroy voices Batman and Joker is voiced by someone else like Troy Baker.

** ''Super'' Confirmed: [[spoiler: Hamill himself and Trickster even later make appearances in back to back episodes with Hamill's episode referencing Joker's appearance and Trickster having [[MultilayerFacade a Joker mask under his monster costumes's mask]].]]

* Creator/StephenMerchant, Creator/KarlPilkington or both, possibly in the same episode as Ricky Gervais. It would go a long way to dispel the rumors that the trio had fallen out.

* The episodes featuring Batman, Flash, and Wonder Woman will also feature many prominent members of their respective rogues galleries.
** And they'll appear in their ''WesternAnimation/JusticeLeagueAction'' incarnations or at least heavily take from it. Writer Tim Sheridan works on both shows, in fact.
*** And then it will lampshaded that [[WesternAnimation/ScoobyDooAndBatmanTheBraveAndTheBold Batman and some of the other heroes]] [[YouDontLookLikeYou look different this time]].

* ''WesternAnimation/YoungJustice''. The creators of ''Young Justice'' have tried pitching a crossover between both entities (one of the creators, Brandon Vietti, in fact, worked on some of the ''Scooby-Doo'' movies and got some of the Team's girls to cameo in the first WWE crossover movie), and ''Young Justice'' is coming back, so now's their chance.

* Several real-life celebrities, like Creator/BenSchwartz, Noel Wells, Creator/DavidSpade, Creator/SethRogen, Creator/PagetBrewster, Creator/PattonOswalt, Creator/JoshGad, Creator/JackBlack, Creator/DonCheadle, Creator/BillyCrystal, Creator/DavidTennant, Creator/WillArnett, Creator/JimmyFallon, Creator/WillFerrell and Creator/AndySamberg and Creator/BillHader.

* [[WesternAnimation/TheGrimAdventuresOfBillyAndMandy Billy, Mandy and Grim]]. Bonus points if they get Maxwell Atoms to write, and it possibly leading up to a crossover film similar to ''Straight Outta Nowhere''.

* Superman. After the Batman, Wonder Woman and Flash episodes, it's surprising he hasn't been shown yet. Bonus points if we get Tim Daly or George Newbern back, just like how Kevin Conroy and Mark Hamill came back for as Batman and the Joker.

[[WMG:There will be references to the previous ''Scooby-Doo'' shows/movies.]]

* Fred mentioning that his dad is/was not a good person.

** This one's confirmed. Other mystery-solving groups are not only mentioned, but shown on-screen in the second episode, with the characters of ''WesternAnimation/TheFunkyPhantom'' guest starring and the ''WesternAnimation/SpeedBuggy'' gang making a cameo.

[[WMG:There will be something special for the franchise's 50th anniversary.]]

[[WMG:There will be {{Take That}}s towards Scrappy-Doo.]]
* Alternatively, if he does appear, they may [[RescuedFromTheScrappyHeap rescue him from his own heap]]. Or...possibly even [[DeconReconSwitch a mix of both]].

[[WMG:This takes place in the same universe as the '10 DTV movies.]]

[[WMG:The show takes place in the reset universe at the end of ''Mystery Incorporated''.]]

[[WMG:This takes place in the same universe as ''WesternAnimation/JusticeLeagueAction''.]]
Rachel Kimsey is reprising her role as Wonder Woman and Kevin Conroy also played as Batman in that version as well. Additionally, Wonder Woman's outfit and weapons are based on her depiction in ''Justice League Action''.

[[WMG:The plot of the Gaffigan episode will involve bacon in some way.]]
Either that or it will be rife with bacon jokes, since they can't afford the rights to advertise "Hooooooot Pocket" on the show.
* Jossed. The food-related humor involved burgers and fries due to taking place at a fast food joint.

[[WMG:Episodes will be dedicated to guest stars from ''WesternAnimation/TheNewScoobyDooMovies'' who are no longer with us.]]

[[WMG:The museum director in "When Urkel-bots Go Bad" is based off Carl Winslow.]]
The guy is Carl Winslow as a museum director. He is overweight, has a mustache, is very short tempered, and is annoyed at Steve's antics. Also, it looks like he's wearing a police uniform underneath his coat, which could be a homage to Carl.

[[WMG:Most viewers expected [[spoiler:Kel Mitchell]] to at least be mentioned in the episode featuring Kenan Thompson as a guest star.]]

[[WMG:A future episode will have the Speed Bugs as proper guest stars and theFunky Phantom gang arriving just too late to help with the mystery as a CallBack to the two groups earlier appearence]].

[[WMG:Simone will eventually be guilty of something]]
Her repeated appearances are a bit rimisincent of Red Herring from ''WesternAnimation/APupNamedScoobyDoo'' and he did it in one episode.

* We ''do'' see her unmasked and tossed in jail during the classic-mystery-busting montage in the Flash's episode, in which she was dressed as a witch.

* Several real-life celebrities, like Creator/BenSchwartz, Noel Wells, Creator/DavidSpade, Creator/SethRogen, Creator/PagetBrewster, Creator/PattonOswalt, Creator/JoshGad, Creator/JackBlack, Creator/DonCheadle, Creator/EdAsner, Creator/BillyCrystal, Creator/DavidTennant, Creator/WillArnett, Creator/JimmyFallon, Creator/WillFerrell and Creator/AndySamberg & Creator/BillHader.

** A Steven Universe crossover would take place after WesternAnimation/StevenUniverseFuture where Steven is WalkingTheEarth, much like Mystery Inc. The Crystal Gems would make an appearance to help take down the monsters of the week, who turn out to be Bluebird Azurite [[LegionOfDoom working with Emerald, Mean Lapis & Squaridot]] to get revenge.

* Other surviving ''WesternAnimation/TheNewScoobyDooMovies'' guest stars Creator/JohnAstin, Creator/DickVanDyke, and Creator/{{Cher}}, given how Sandy Duncan appeared as herself again.