Mason Thames as Finney Blake

Madeleine McGraw as Gwen Blake

Ethan Hawke as The Grabber

Jeremy Davies as Terrence Blake

E. Roger Mitchell as Detective Wright

Troy Rudeseal as Detective Miller

James Ransone as Max

Miguel Mora as Robin Arellano

Rebecca Clarke as Donna

J. Gaven Wilde as Moose

Spencer Fitzgerald as Buzz

Jordan Isaiah White as Matty

Brady Ryan as Matt

Tristan Pravong as Bruce Yamada

Jacob Moran as Billy

Brady Hepner as Vance Hopper

Banks Repeta as Griffin

Kristina Arjona as Ms. Fulgrim

Sheila M. O'Rear as Principal Keller

Rocco Poveromo as Chief of Police

Kellan Rhude as Patrolman

Gina Jun as Bruce's Mother

Ryan Cronan as Young Bruce

Dashiell Derrickson as Jackass #1

Braxton Alexander as Jackass #2

Reagan Shumate as Teen Girl #1

Bay Allebach as Teen Girl #2

Andrew Farmer as Teammate #1

T. Maxwell Martin as Teammate #2

Ron Blake as EMT

Robert Fortunato as Patrolman #2

Chris TC Edge as Fireman

Mark Riccardi as Umpire

Megan Petersen as Math Teacher

Mike Bailey as Bruce's Father

Christine Connelly as School Office Lady

Matthew Simmons as Adult Volunteer

Parrish Stikeleather as Mr. Hopkins

Luca De Massis as Policeman (uncredited)

Veronica Russell as EMT