Scooby-Doo and Guess Who?
Season 1, Episode 11: Now You Sia, Now You Don't!
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When Daphne gets a call from singer-songwriter Sia, the gang finds themselves in a mystery involving an evil demon ghost that has taken the shape of Sia as a ghostly doppelgänger that steals countless gems and jewelry.
All Episodes - Season 1
Episode 1
Revenge of the Swamp Monster!
Episode 2
A Mystery Solving Gang Divided!
Episode 3
Peebles' Pet Shop of Terrible Terrors!
Episode 4
Elementary, My Dear Shaggy!
Episode 5
Ollie Ollie In-come Free!
Episode 6
The Scooby of a Thousand Faces
Episode 7
The Cursed Cabinet of Professor Madds Markson!
Episode 8
When Urkel-Bots Go Bad!
Episode 9
The Fastest Fast Food Fiend!
Episode 10
Attack of the Weird Al-osaurus!
Episode 11
Now You Sia, Now You Don't!
Episode 12
Quit Clowning!
Episode 13
What a Night for a Dark Knight!
Episode 14
The Nightmare Ghost of Psychic U!
Episode 15
The Sword, the Fox, and the Scooby-Doo!
Episode 16
One Minute Mysteries!
Episode 17
Hollywood Knights!
Episode 18
The New York Underground!
Episode 19
Fear of the Fire Beast!
Episode 20
Too Many Dummies!
Episode 21
Dance Matron of Mayhem!
Episode 22
The Wedding Witch of Wainsly Hall!
Episode 23
A Run Cycle Through Time!
Episode 24
I Put a Hex on You!
Episode 25
The High School Wolfman's Musical Lament!
Episode 26
Space Station Scooby!