Mason Thames
Finney
Madeleine McGraw
Gwen
Ethan Hawke
The Grabber
Jeremy Davies
Terrence
E. Roger Mitchell
Detective Wright
Troy Rudeseal
Detective Miller
Miguel Mora
Robin
Tristan Pravong
Bruce
Brady Hepner
Vance
James Ransone
Max
Rebecca Clarke
Donna
J. Gaven Wilde
Moose
Spencer Fitzgerald
Buzz
Jordan Isaiah White
Matty
Brady Ryan
Matt
Jacob Moran
Billy
Banks Repeta
Griffin
Parrish Stikeleather
Mister Hopkins
Kristina Arjona
Mrs. Fulgrim
Sheila M. O'Rear
Principal Keller
Rocco Poveromo
Chief of Police
Kellan Rhude
Patrolman
Nina Repeta
Sally's Mother
Reagan Shumate
Teen Girl
Bay Allebach
Teen Girl #2
Dashiell Derrickson
Jackass 1
Braxton Alexander
Jackass 2
Lukas Colagross
Shop-N-Go Kid
Mark Riccardi
Umpire
Andrew Farmer
Teammate 1
T. Maxwell Martin
Teammate 2
Garrison Starkweather
Teammate 3
Megan Petersen
Math Teacher
Robert Fortunato
Cop
Christine Connelly
Office Attendant
Gina Jun
Bruce's Mother (uncredited)
Mike Bailey
Bruce's Father (uncredited)
Ryan Cronan
Young Bruce (uncredited)
Ron Blake
EMT (uncredited)
Veronica Russell
EMT (uncredited)
Chris TC Edge
Fireman (uncredited)
Matthew Simmons
Adult Volunteer (uncredited)
Luca De Massis
Policeman (uncredited)