Dwayne Johnson, 52

Dr. Smolder Bravestone

1

Nick Jonas, 32

Alex

2

Jack Black, 55

Professor Shelly Oberon

3

Kevin Hart, 45

Franklin

4

Alex Wolff, 27

Spencer Gilpin

5

Karen Gillan, 36

Ruby Roundhouse

6

Madison Iseman, 27

Bethany White

7

Missi Pyle, 52

Coach Webb

8

Bobby Cannavale, 54

Van Pelt

9

Marc Evan Jackson, 54

Principal Bentley

10

Morgan Jeanette Turner, 25

Young Martha

11

Tim Matheson, 76

Old Man Vreeke

12