Sean Astin, 53

Narrator

1

Clancy Brown, 65

Mr. Ree

2

Mindy Sterling, 71

Mrs. Sneedly

3

John DiMaggio, 56

Smelly Sockotpus

4

Jorge Diaz, 41

Melvin Sneedly

5

Rob Riggle, 54

Theodore

6

Tress MacNeille, 73

Ms. Hurd

7

Maggie Wheeler, 63

Ms. Yewh

8

Stephen Root, 73

Mr. Morty Fyde

9

David Koechner, 62

Mr. Meaner

10

Nat Faxon, 49

Captain Underpants/Mr. Krupp

11

Jim Rash, 53

Mr. Jerry Citizen

12