You may know Josh Sundquist as a Paralympic ski racer, author, motivational speaker and the inspiration for the AppleTV+ show "Best Foot Forward."

All valid.

But we know him as the King of Halloween Costumes.

Sundquist lost his leg to a rare form of cancer when he was 9. Based on Sundquist's book "Just Don't Fall," this Apple TV+ show features a main character who has a prosthetic leg while faceing the challenges of middle school. Sundquist is an executive producer of the show.