- For the real ghost of Colonel Beauregard, see Colonel Beauregard.
|Ghost of Colonel Beauregard|
|Motive||To steal an emerald necklace|
|First appearance||TNSDMysteries: Showboat Scooby|
The New Scooby-Doo Mysteries
When Pops heard there might be an emerald necklace on the showboat, he dressed up as the ghost so everyone would leave so he could search for it uninterrupted.