Joshua Lee Sundquist (born August 6, 1984) is an American comedian, Paralympian, and author. He lost his left leg to Ewing's sarcoma at age nine and later became a Paralympic ski racer. His memoir, Just Don't Fall: How I Grew Up, Conquered Illness, and Made it Down the Mountain, was released in January 2010. A new show on Apple TV+ has recently been released called Best Foot Forward about his early life experiences.