Elenco Principal da Temporada 12

1. 

   Kyle Massey

   Milo (voice)

2. 

   Chelsea Kane

   Bea (voice)

3. 

   Justin Roiland

   Oscar (voice)

4. 

   Dana Snyder

   Mr. Baldwin (voice)

5. 

   Alex Hirsch

   Clamantha (voice)

6. 

   Tommy Lister Jr.

   Mr. Mussels (voice)

7. 

   John DiMaggio

   Jocktopus (voice)

8. 

   Rachel Dratch

   Esmargot (voice)

9. 

   Atticus Shaffer

   Albert Glass (voice)

10. 

    Richard Simmons

    Coach Salmons (voice)

11. 

    ヴァネッサ・マーシャル

    Mouse (voice)

12. 

    カリ・ウォールグレン

    Shellsea / Snake (voice)

Convidados Especiais 1

1. 

   Jennifer Coolidge

   Doris (voice)

Equipa Técnica 5