Stała obsada sezonu 12

1. 

   Haruka Shiraishi

   Ronja (voice)

2. 

   Reika Uyama

   Birk (voice)

3. 

   Yukari Nozawa

   Lovis (voice)

4. 

   Mika Doi

   Undis (voice)

5. 

   Takaaki Seki

   Mattis (voice)

6. 

   Atsuki Tani

   Borka (voice)

7. 

   Gillian Anderson

   Narrator

8. 

   Teresa Gallagher

   Ronja (voice, English version)

9. 

   Rasmus Hardiker

   Fjosok / Pelje / Sturkas / Tjorm (voice, English version)

10. Bob Golding

    Borka / Knotas / Tjegge / Ch0043658 (voice, English version)

11. 

    Adrian Edmondson

    Noodle Pete (voice, English version)

12. 

    Rufus Hound

    Mattis (voice, English version)

Goście specjalni 0

There are no cast records added to The Whistler Underground.

Ekipa 0

There are no crew records added to The Whistler Underground.