Emma Roberts
Rex Simpson
Acting
Tom Hopper
Logan O'Leary
Acting
Poppy Liu
Nadine Cai
Acting
Gabrielle Union
Pam Proctor
Acting
Kuhoo Verma
Violet Marie Vislawski
Acting
Desi Lydic
Dr. Stacy Kellogg
Acting
Sebastián Yatra
Toddrick Spencer
Acting
Sam Robards
Rex's Dad (Calvin Simpson)
Acting
Dave Foley
Rudolph Bolton
Acting
Yasha Jackson
Grace Jackson
Acting
Andrew Call
Captain Jack Mancini
Acting
Josephine Huang
Miriam Osprey
Acting
Troy Iwata
Hector Kaneko
Acting
Caroline Concannon
Rex Simpson - 8 years old
Acting
John Ahlin
Gator Greg
Acting
Tómas Matos
Johnny
Acting
Fergie L. Philippe
Bingo
Acting
Alli Brown
Paris
Acting
Glo Tavarez
Kendra
Acting
Allegra Heart
Erin
Acting
Neal Davidson
Cold Water Dude
Acting
Natasha Warner
Rex's Mom (Tara Simpson)
Acting
Makia Martin
Condemned Mansion Tourist
Acting
Max Jenkins
Miles the Med Tech
Acting
Alyson Schacherer
Tourist Mom
Acting
Shirley Roeca
Dee Bellevue
Acting
Joshua Harto
Captain Elvis Popowski
Acting
Merritt Janson
Departing Ascan
Acting
Alexis Suarez
Flight Captain
Acting
Drew Powell
Drunk Customer (Lucas)
Acting
Eddie A. Bryant
Head of Security
Acting
Kevin Downes
Security Guard
Acting
Michael J. Massimino
Astronaut #1
Acting
Gideon Yu
Astronaut #2
Production
Les Ware
Astronaut #3
Acting
Brennan Joseph Taylor
Sweaty Ascan
Acting
Kimberly Pauley
Guidance Counselor
Acting
Cooper Silverman
Beach Partygoer
Acting
Samira Sardella
Space Camp Girl #1
Acting
Ollie Gregorio
Space Camp Girl #2
Acting
Jaynalie Rios
Space Camp Girl #3
Acting
Wilder Garcia-Harto
Tourist Kid #1
Acting
August Garcia-Harto
Tourist Kid #2
Acting