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