Billy dilley promotional image

Promotional image; characters, from left: Marsha, Billy and Zeke

Billy Dilley's Super-Duper Subterranean Summer is an upcoming Disney XD series scheduled to premiere June 3rd, 2017.[1] It is created and executive produced by Aaron Springer (Gravity Falls, Disney Mickey Mouse). On January 5, 2017, Springer announced that the series will premiere this spring, but later in this summer[2]


The series is centered on Billy Dilley, a seventh grader with a love of science. He spends the summer vacation inside his lab with his friends Marsha and Zeke, and they later found themselves in a strange world under the surface of Earth.


  • Aaron Springer as Billy
  • Tom Kenny as Zeke
  • Catie Wayne as Marsha
  • James Arnold Taylor as Count Wretcher


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