Cast 39

1. 

   Amanda Seyfried

   Daphne Blake (voice)

2. 

   Christina Hendricks

   Officer Jaffe (voice)

3. 

   Frank Welker

   Scooby-Doo / Pterodactyl (voice)

4. 

   Mckenna Grace

   Young Daphne (voice)

5. 

   Gina Rodriguez

   Velma Dinkley (voice)

6. 

   Justina Machado

   Jamie Rivera (voice)

7. 

   Zac Efron

   Fred Jones (voice)

8. 

   Ariana Greenblatt

   Young Velma (voice)

9. 

   Will Forte

   Shaggy Rogers (voice)

10. 

    Mark Wahlberg

    Blue Falcon (voice)

11. 

    Iain Armitage

    Young Shaggy (voice)

12. 

    Pierce Gagnon

    Young Fred (voice)

13. 

    Henry Winkler

    Keith (voice)

14. 

    Jason Isaacs

    Dick Dastardly (voice)

15. 

    Kiersey Clemons

    Dee Dee Skyes (voice)

16. 

    Ken Jeong

    Dynomutt, Dog Wonder (voice)

17. 

    Tracy Morgan

    Captain Caveman (voice)

18. 

    Simon Cowell

    Simon Cowell (voice)

19. Harry Perry

    Harry Perry (voice)

20. 

    Kevin Heffernan

    Bike Cop Gary (voice)

21. 

    John DiMaggio

    Restaurant Owner (voice)

22. 

    Ira Glass

    Ira Glass (voice)

23. Henry Kaufman

    Chad / Chet (voice)

24. 

    Maya Erskine

    Judy Takamoto (voice)

25. 

    Billy West

    Muttley (voice)

26. 

    Don Messick

    Muttley (archive audio) (voice)

27. 

    Fred Tatasciore

    Cerberus (voice)

28. Kennedy Peil

    Indira Knight (voice)

29. John McDaniel

    Hal Murphy (voice)

30. Ryan Folsey

    Beach Guy (voice)

31. Pam Coats

    Mrs. Rogers (voice)

32. 

    Tony Cervone

    Ghost / Mr. Rigby / Alice (voice)

33. Alex Kauffman

    Officer North (voice)

34. Vanara Taing

    Baby Rotten (voice)

35. Sarah Lancia

    Dispatcher Stevens (voice)

36. Eric Cowell

    Ben (voice)

37. Maven Morgan

    Kari (voice)

38. Adam Sztykiel

    Officer Casey (voice)

39. Michael Kurinsky

    Samuel Colton (voice)

Crew 45