Jack Black Professor Sheldon 'Shelly' Oberon
Dwayne Johnson Producer, Dr. Smolder Bravestone
Kevin Hart Franklin 'Mouse' Finbar
Danny DeVito Eddie
Karen Gillan Ruby Roundhouse
Andrew Max Cahn Supervising Art Director
Awkwafina Ming
John Ross Bowie Cavendish
Danny Glover Milo
Colin Hanks Alex
Danny Le Boyer Stunts
Lamorne Morris Heater Repair Guy
Marin Hinkle Spencer's Mom
Kristina M. Peterson Second Second Assistant Director
Nick Jonas Jefferson 'Seaplane' McDonough
Rhys Darby Nigel Billingsley
Alex Wolff Spencer Gilpin
Bebe Neuwirth Nora
Ser'Darius Blain Anthony 'Fridge' Johnson
David B. Householter Executive Producer
Dania Ramirez Lady in Red
Madison Iseman Bethany
Randy James Beckman Stunts
Ashley Scott Ashley (uncredited)
Michael Hansen Stunts
James William Ballard Bad Guy in Fortress (uncredited)
David Conk Stunts
Samuel J. Paul Stunt Double
Rory McCann Jurgen the Brutal
Chris Van Allsburg Book, Executive Producer
Scott Rosenberg Writer, Executive Producer
Wainani Young-Tomich First Assistant Director
Dave Van Zeyl Stunts
Tanoai Reed Stunt Double
Jake Kasdan Writer, Director, Producer
Geoffrey Haley Steadicam Operator
Jeanne McCarthy Casting Director
Jeff Pinkner Writer, Executive Producer
Vince Pisani Pharmacy Manager
Deobia Oparei Elevator Guard
Lucy DeVito Maiden
Rob Mars Stunts
Charles Green Bartender (uncredited)
Shawnna Thibodeau Stunts
Tom McComas Stunts
J.J. Dashnaw Stunts
Madison Johnson Little Bethany Vreeke
Morgan Turner Martha Kaply
Vanessa Cater Red Headed Marauder (uncredited), Stunts
Matt Berberi Stunts
Nick Gomez Oasis Drunk
Jess King Stunts
Wade Eastwood Second Unit Director, Stunt Coordinator
Derek Russo Key Master
Lucy Cork Stunt Double
Mark Helfrich Editor
Roel Failma Stunts
Allan Henry Stunts
Nicole Abellera Hallman Casting Director
Alyma Dorsey Stunts
Greg Harris Stunts
Rafael E. Sánchez Gaffer
Dany Garcia Producer
Michael Beasley Coach Davis (uncredited)
Bill Brzeski Production Design
Matt Rebenkoff First Assistant Director
Brice Liesveld Visual Effects Producer
Henry Jackman Original Music Composer
Tad Griffith Stunts
Thomas Joseph Culler Stunts
Jennifer Patino Bravestone's Mother
Massi Furlan Switchblade