1. Jareth's considerable bulge was an intentional choice made by conceptual designer Brian Froud.
2. The armor on Jareth's leather jacket is a nod to 15th century knights.
3. The short staff with the crystal on the end that Jareth carries is called a "swagger stick," and the crystal was designed to resemble a microphone.
4. The character Hoggle was voiced by Brian Henson, Jim Henson's son.
5. The puppet Hoggle had 18 motors in its face and was operated by four people. The actress inside the puppet did all of Hoggle's body movements, but none of the facial movements.
6. Hoggle was lost in transit and is now on display at the Unclaimed Baggage Center in Alabama.
7. The baby noises in the song "Magic Dance" are actually David Bowie. He didn't feel the recordings of the real baby sounded good enough.
8. All of the amazing crystal juggling Jareth the Goblin King does is trained professional Michael Moschen crouching behind David Bowie, working totally blind.
9. Jim Henson said that Moschen's work was "as close to real magic as anything that I really know."
24. In an earlier version of the script, Sarah sings a lullaby to Toby. Jennifer Connelly said she thought it got cut partly because of her singing voice.
25. The Bog of Eternal Stench didn't really smell, but a lot of the lovely noises it makes were actually happening during filming.
26. Labyrinth was the last feature film Jim Henson directed before his death.