Images of Horned King from The Black Cauldron.
Animation and Comics
The Horned King gets pulled into the cauldron.
Horned King as appeared in
Hen Wen's vision.
Concept Arts
The Horned King as he appeared in The Chronicles of Prydain book series.
Horned King's early sketch.
Another Horned King's early art. (Who originally going to be
Arawn.)
Theme Parks