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