Billy Dilley is the main character of the Disney XD cartoon Billy Dilley’s Super-Duper Subterranean Summer. Voiced by the show's creator Aaron Springer, Billy is a quirky, science-loving kid who ends up on an unexpected underground adventure during summer break. Along with his lab buddies Zeke and Marsha, he gets stuck deep beneath the Earth's surface in a bizarre and mysterious world. Billy may be a little awkward around others, but his love for science often saves the day. To dress like Billy, grab a ginger afro wig, a turquoise long-sleeved shirt, light blue pants, royal blue sneakers, and white gloves. Want to complete the look? Use a blue-and-white cap and paint a green "B" on the front with fabric paint for his signature hat. Collect all the accessories of the Billy Dilley costume from Billy Dilley's Super-Duper Subterranean Summer for Halloween and cosplay.