Shaggy's uncle was Civil War-reenactor and not actually from that era in time
This theory just makes the most sense.- Baring how time passes in Scooby and in HB in general, might it also be possible there was some extra time between Beauregard's death and the reading of his will? Especially given his grave didn't look new and had a bust headstone on it. Those can take time in comparison to a normal headstone.
- The Sheriff says that no one's living in the mansion "now that the colonel's passed on", but given he's forgetting Farquard there we might not take him to be telling the truth there. As Sadie-Mae clearly expects to at least run into Farquard when she came over before meeting Shaggy. You don't go to a house to borrow molasses if nobody lived there. Might we assume Farquard has spent some time alone there maybe even looking for the treasure while the lawyer read the will and wrote to Shaggy?
Shaggy's uncle was a werecat
As has been pointed out, the only way Shaggy's uncle could have been a colonel during the civil war would be if he lived to be over 140 years old. What if he actually did? In Scooby-Doo on Zombie Island the gang come across zombies wearing Confederate uniforms. What if Colonel Beauregard's regiment of soldiers encountered the werecats during the war, and Beauregard joined them? Betraying his men to be sacrificed during the harvest moon ritual, Beauregard makes an alliance with Simone and Lena and becomes a werecat himself. Due to the curse, he lives an incredibly long time, and his assistance helps Simone and Lena stay hidden whenever someone comes to investigate the Moonscar Island disappearances. After years of living with the curse, Beauregard finally feels horror and guilt for his evil deeds, returns to his plantation, leaves everything to Shaggy in his will, and allows himself to die by not performing the harvest moon ritual at the required time. Without their ally, Simone and Lena are forced to return to their old home and recruit a new ally.Shaggy's Uncle owned Great Grandpa Scooby
In the previous Scooby series we learn Scooby's Great Grandpa was a ghost and had served in the civil war. Just like Shaggy's Uncle Beauregard. Perhaps the reason Uncle Beauregard left his mansion to Shaggy is that he knew Shaggy loved his Scooby as he much as he loved his in life.The Boo Brother's died in a house fire
They are orphan ghosts without a house of their own to haunt. It would make sense if their own house burned down.- Does orphan just mean they were without their parents? Given they sure do have a lot of other relatives.
- I interpret orphan in this case means "without a home". They do have a lot of family but no family home to haunt. The idea that they used to have one and it's gone now makes sense, and a fire would be one of the ways that house might not be around anymore. Although I suppose it speaks to that the Boo Brothers aren't so popular given all those relatives don't want to invite them to haunt their houses. Ain't Cousin Zeko got some spare room?
- The Boo Brothers do make mention they have no mother or father. Are we supposed to assume that means they aren't ghosts or that they were orphans before they died? Given they all so many relatives that are ghosts, the latter seems unlikely. Or were they disowned by their parents?
- Maybe being an orphan ghost means their parents are still alive?
There were two skull ghosts
I noticed that the skull ghost that the gang met on the roof is different than the one at the end. They have different voices.- This is likely given in some scenes the skull ghost is clearly just a man in a black bodysuit. In other cases there is nothing but bones. They do also casually drop the notion "the sheriff could impersonate all the ghosts".
- Or perhaps he just adjusted the costume some after the first time.
- Cartoon logic aside how does one adjust a costume to appear you are a skinny skeleton when you are a fat guy?
- The skeleton does look fat in certain scenes, factoring in the bodysuit, and other times a corset may have been used like in Scooby-Doo! Stage Fright.
The poor old witch was the boo brother's mother
And now she wants to ditch them? Well maybe given they were orphans. Farquard was an accomplice
He was helping the sheriff. The ghost in the attic was him in disguise.In the end he betrays the sheriff and makes sure only he gets blamed.- It's likely Farquard was looking for the treasure on his own as hinted at in the above guess. Whether he was ever aligned with the sheriff though isn't really addressed.
- Farquard having the necklace that was stolen in the attic presumably means he was dressed up as that ghost, but the ghost in the attic had an accent that sounded very similar to Beauregard's ghost. It's possible the ghost in the attic was Buzby after all, but that Farquard ran into him as he ducked out of the passageway and he bribed him to keep quiet with the necklace or pretended to have simply found it.
Beaureguards ghost was real
AT the beginning he throws the weapon at them. He later appears in the bedroom and vanishes into thin air. At the end he appears watching them. None of these could have been the sheriff dressed up as him.- One further ambiguous example might be when Beauregard's ghost fights and interacts with the Boo Brothers. Though he does use one of the secret passageways to enter the room and eventually retreat (rather than simply vanish or walk through the wall), he also seems strangely nonchalant about confronting actual ghosts, the most logical explanation being that he was one himself (contrasting with other examples where the false sheriff flees when confronted with an actual threat such as the ape).
The ghost ape really does haunt the mansion
Similar to the skull ghost theory above, there are two apes the escaped circus ape and the ghost ape. There is a spiritual portal near the mansion
It would explain all the weird unexamined spiritual activities like pants moving, footsteps, Scooby being scratched and all the other unexplained phenomena. Scooby Doo and the Boo Brothers is a G-rated version of The Beyond
Related to the above theory, Shaggy inherits a Southern manor containing one of the world's seven portals to the Beyond, to the tune
of a comparably '80s synthy score, but fortunately only has to contend with ghosts, wolves, apes, bears, hillbillies, and impostors looking to take advantage of legends they read about in the Book of Eibon, rather than murderous zombies, killer tarantulas, possessed children, blind women and German shepherds that are afterlife refugees, and taking a wrong turn into Hell itself. IBTrav, get on this... That wasn't the circus ape
It looks just like the ghost ape. It's likely that the circus ape never made it to the mansion or maybe never even existed and the dispatcher was using it as a diversion. one of the Scroggins and one of the Beuareguards had an illegitimate child
It would definitely cause a feud.- Yeah and Sadie-Mae is trying to repeat things all over again.
The mansion was a shelter during the war
It would explain all of the weird paranormal activity that goes on there. The Colonel really was a Civil War veteran, but the movie takes place in the 1940's or 1950's, well before the time it was made
- It would fit with a lot of the films content (old-fashioned telephone, etc.) although it would make it hard to explain Shaggy's truck (apparently a 1986 Suzuki Samurai).
Billy Bob recognizes that Sheriff Buzby was an imposter
and that was why he ignored his warnings and kept on shooting After the events of the movie, the bear moved
Too much weird stuff going on in this town, the bear packed it up and moved to Jellystone. The Skull Ghosts change in appearance is due to Scooby, Shaggy and Scrappy's change in perspective
When the gang first meet the ghost, the assume he's real, so he looks like a real skeleton to them. It isn't until they find out farquard was the floating ghost in the attic that Shaggy concludes that non of the ghosts are real (besides the Boo Brothers), so from then on, the gang know the Skull Ghost is fake and see him as a guy wearing a costume.