Billy Dilleys super-duper Sommer Abenteuer The Battle for Subterranea-Tania Parts 1 & 2 (2017) Online
Billy throws a goodbye party for all his new friends, but things go awry when the celebration is interrupted by an alien invasion!
| Episode cast overview: | |||
 | Aaron Springer | - | Billy Dilley / Evil Billy (voice) |
 | Tom Kenny | - | Zeke / Thurston / Additional Voices (voice) |
 | Catherine Wayne | - | Marsha (voice) |
 | James Arnold Taylor | - | Count Wretcher / Additional Voices (voice) |
 | Travis Willingham | - | Zartran / Additional Voices (voice) |
 | Kevin Michael Richardson | - | Gumbrump / Additional Voices (voice) |
 | Richard Steven Horvitz | - | Yucky / Additional Voices (voice) (as Richard Horvitz) |
| Kenny Pittenger | - | Tony / Additional Voices (voice) |
 | Susanne Blakeslee | - | Hag Witch / Additional Voices (voice) |
 | Brian Posehn | - | Gorkager (voice) |
 | Sarah-Nicole Robles | - | Judy (voice) |
 | Fred Tatasciore | - | Ogre / Additional Voices (voice) |
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