Dwayne Johnson, 52

Dr. Smolder Bravestone

1

Jack Black, 55

Professor Shelly Oberon

2

Kevin Hart, 45

Franklin

3

Nick Jonas, 32

Alex

4

Karen Gillan, 37

Ruby Roundhouse

5

Missi Pyle, 52

Coach Webb

6

Madison Iseman, 28

Bethany White

7

Alex Wolff, 27

Spencer Gilpin

8

Bobby Cannavale, 54

Van Pelt

9

Marc Evan Jackson, 54

Principal Bentley

10

Rhys Darby, 51

Nigel

11

Tim Matheson, 77

Old Man Vreeke

12