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