On screen · 25

1. AH
   Alex HirschThe Simpsonsas Bill Cipher (voice)Gravity Fallsas Grunkle Stan / Soos Ramirez / Bill Cipher / Old Man McGucket (voice)·Creator·Executive Producer·Writer
2. KM
   Kevin Michael RichardsonThe Simpsonsas Dr. Hibbert (voice)Gravity Fallsas Sheriff Blubs (voice)
3. GD
   Grey DeLisleThe Simpsonsas Martin Prince (voice)Gravity Fallsas Additional Voices (voice)
4. KS
   Kristen SchaalThe Simpsonsas Louise Belcher (voice)Gravity Fallsas Mabel Pines (voice)
5. WF
   Will ForteThe Simpsonsas King Toot (voice)Gravity Fallsas Tyler Cutebiker (voice)
6. JD
   John DiMaggioThe Simpsonsas Bender (voice)Gravity Fallsas Manly Dan (voice)
7. JS
   J.K. SimmonsThe Simpsonsas Victor Kleskow (voice)Gravity Fallsas Stanford Pines (voice)
8. JR
   John RobertsThe Simpsonsas Linda Belcher (voice)Gravity Fallsas Xyler (voice)
9. KB
   Kimberly BrooksThe Simpsonsas Janey Powell (voice)Gravity Fallsas Sassica (voice)
10. JR
    Justin RoilandThe Simpsonsas Rick Sanchez / Morty Smith (voice)Gravity Fallsas Blendin Blandin (voice)
11. NO
    Nick OffermanThe Simpsonsas Captain Bowditch (voice)Gravity Fallsas Agent Powers (voice)
12. LK
    Larry KingThe Simpsonsas Larry King (voice)Gravity Fallsas Wax Larry King (voice)
13. SR
    Stephen RootThe Simpsonsas Bildorf (voice)Gravity Fallsas Bud Gleeful (voice)
14. CP
    Chelsea PerettiThe Simpsonsas Lauren (voice)Gravity Fallsas Darlene (voice)
15. 'A
    'Weird Al' YankovicThe Simpsonsas 'Weird Al' Yankovic (voice)Gravity Fallsas Probabilitor the Annoying (voice)
16. CP
    Chris ParnellThe Simpsonsas Surgeon fiancé (voice)Gravity Fallsas Host (voice)
17. JO
    John OliverThe Simpsonsas Booth Wilkes-John (voice)Gravity Fallsas Wax Sherlock Holmes (voice)
18. LB
    Lance BassThe Simpsonsas Lance Bass (voice)Gravity Fallsas Sev'ral Timez member (voice)
19. ND
    Neil deGrasse TysonThe Simpsonsas Neil deGrasse Tyson (voice)Gravity Fallsas Waddles' Machine (voice)
20. DB
    Diedrich BaderThe Simpsonsas Officer (voice)Gravity Fallsas Dundgren (voice)
21. JS
    Jon StewartThe Simpsonsas Jon Stewart (voice)Gravity Fallsas Judge Kitty Kitty Meow Meow Face-Shwartstein (voice)
22. PO
    Patton OswaltThe Simpsonsas T-Rex (voice) / Bart's guilt (voice)Gravity Fallsas Franz (voice)
23. PS
    Peter SerafinowiczThe Simpsonsas Corporate CEO (voice)Gravity Fallsas Blind Ivan (voice)
24. MH
    Mark HamillThe Simpsonsas Mark Hamill / Leavelle (voice)Gravity Fallsas Mysterious Old Man (voice)
25. JC
    Jim CummingsThe Simpsonsas Dunkin (voice)Gravity Fallsas Pirate Lilliputtian (voice)