- Josh Flitter
- Ace Ventura, Jr.
- Emma Lockhart
- Laura Wilson
- Ann Cusack
- Melissa Ventura
- Cullen Douglas
- Dr. Sickinger
- Art LaFleur
- Russell Hollander
- Austin Rogers
- A Plus
- Reed Alexander
- Pennington Jr.
- Carina Conti
- Tara
- Ralph Waite
- Grandpa Ventura
- Ashley Milchman
- Emo Kid #1
- Brooke Milchman
- Emo Kid #2
- Aubrey Shea
- Daniella
- Morgan Curschman
- Girl Swimmer #1
- Paige Huston
- Girl Swimmer #2
- Lisa Glaze
- Teacher
- Kendall Ganey
- Little Girl at Spelling Bee
- Tom Hillmann
- Trooper
- Trevin Lica
- Bully
- Jabari Ty'ree Shaffer
- Boy
- Jeff Chase
- Pennington Bodyguard
- John Connon
- Tour Guide
- Veryl Jones
- Museum Security Guard
- Phil Ramirez
- Prosecutor
- Jim R. Coleman
- Judge
- Karel Wright
- Tabby's Handler
- Jeff Farley
- Tabby's Security Officer
- William Haze
- Magician
- Terry Loughlin
- Horse Owner
- Patrick Hoover
- Party Kid #1
- Haley Sehgal
- Party Kid #2
- Connor Boyle
- Overwhelmed Kid
- Brian Patrick Clarke
- Pennington Sr.
- Adam Vernier
- Agent #1
- Tom Brooks
- Agent #2
- Tyler the Dog
- Ox the Dog
- Shane Costa
- Pennington Jr. Bodyguard
- Cristina Huang
- Park Guest
- Dakota Marooney
- Kid at Party
- Brandon Migliore
- Crash car driver
- Rhiannon Roberts
- Park Guest
- Chris Adler
- Pennington Jr.'s Bodyguard
- Robie Alan
- Special Government Agent
- Christian Andreas
- Guard in Dinosaur Chase
- Karl Anthony
- Laura's Dad
- Jennifer Badger
- Security Team Leader
- Sam Bauso
- FBI Agent
- Jessica Blackmore
- Assistant with White Horse
- Ophelia Boxley
- Pedestrian
- Justin Brown
- Churro Guy
- Lisa Buckley
- Miss Foster - Ox's Pet Store Clerk
- Aaron Campbell
- Agent
- Chase 'Uzzle' Carter
- FBI Agent
- Whitney Costner
- Witness
- Omar Elkalyoubie
- Chinese Dignitary
- Bayley Ellenburg
- Witness
- Jeff Ellenburg
- Witness
- Emily Everhard
- Additional Voices
- Macaila Fernandes
- Marina's Friend
- Ciara Gari
- Student
- Wael Georgey
- FBI Agent
- Jen Halbert
- Tabby's Entourage
- Kelsie Erin Howell
- Party Kid
- Annie Kidwell
- County Prisoner
- Ariana Kollman
- Spelling Bee Girl
- Jesse Kozel
- Neighbor
- Noah Kronenberger
- Park Guest
- Jennifer Lonardo
- Teacher
- Sam Lonigro
- Girls Swim Team Member
- Leslie Maine
- FBI Agent
- Amari Marshall
- Student
- Tiffany Marshall
- Crash Driver / Cafeteria Worker (uncredited)
- Angel McBride
- iPod Gir - Tara's Friend
- Celestial McBride
- Spelling Bee Contestant - Marina's Friend
- Melody Mccraney
- Teacher
- Nicole Mills
- Miss Letterblair - Ox's Dog Collar Saleslady
- Freddie Forward Mitchell
- Magic Show Stage Hand
- Jennifer Paige Moralez
- Student / Party Dancer (uncredited)
- Tom Myers
- Security Guard
- Katarina Noel
- Student - Talent Show
- Headley Oliver III
- Park Guest / Party Dancer (uncredited)
- Jeremy Palko
- CSI Agent
- Jason Nathaniel Powers
- Park Guest
- Summer Raine
- Car Driver / Pedestrian / Neighbor / Prisoner (uncredited)
- Michael M. Rummel
- Basketball / Wrestling Referee (uncredited)
- Noah Schnacky
- Swim Team Boy
- David W. Scott
- Mr. Pennington's Bodyguard
- AJ Semiday
- Teacher
- Adonis Stevens
- DJ the Security Guard
- Andy Ussach
- Pennington's Butler
- Nelitza Vallellanes
- Teacher
- Trevis Waters
- Courtroom Attendant
- Steve Wickersham
- Gatorland Patron
- Elizabeth Rose Young
- Park Guest
- Kevin B. Young
- Man on the street
