Slyder is the secondary antagonist in Barbie & The Diamond Castle. He is a clumsy flying serpent, and was the servant of an evil former Muse named Lydia.


Slyder first appears as Melody sings, showing an ability to locate the young Muse through her voice. On the orders of Lydia, he goes to apprehend her. He manages to burn Alexa and Liana's house down while searching for her, but is tricked with a fake mirror and ends up empty-clawed. He and Lydia are turned to stone at the end of the film.


Slyder is eager to please his mistress, but is very clumsy. He's a bit of a sycophant.

Barbie & The Diamond Castle
Barbie & The Diamond Castle Digital Copy.png

Quote: "Friendship is the true treasure."

Characters: Alexa | Barbie | Dori | Glimmer | Ian | Jeremy | Liana | Lily | Lydia | Melody | Muses of Music | Phaedra | Slyder | Sparkles | Stacie | Teresa

Objects: Magic Mirror

Locations: Diamond Castle | Liana and Alexa's Cottage | Mansion | Valley of Flowers

Songs: "Believe" | "Connected" | "Double Vision" | "Two Voices, One Song" | "We're Gonna Find It" | "Wonderful Me"

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