Asa Butterfield as Gardner Elliot

Britt Robertson as Tulsa

Carla Gugino as Kendra Wyndham

Gary Oldman as Nathaniel Shepherd

Janet Montgomery as Sarah Elliot

BD Wong as Tom Chen

Trey Tucker as Harrison Lane

Scott Takeda as Dr. Gary Loh

Adande 'Swoozie' Thorne as Scott Hubbard

Sarah Minnich as Reporter

Ryan Jason Cook as Control Room Technician

Lauren Chavez-Myers as Alice Myers

Morse Bicknell as NASA Executive

Beth Bailey as NASA Chief Doctor

Peter Chelsom as Centaur (voice)

William Sterchi as Debate Moderator

Anthony Jarvis as College Student

Zacciah Hanson as Little Bewley Brother

Jesse Romero as Big Bewley Brother

Tim Janis as Chuck Woodruff

Kristen DeVore Rakes as Maid

Aurora Antonio as Young NASA Secretary

Bruce McIntosh as NASA Scientist

Lora Martinez-Cunningham as NASA Guide

David House as Roland

John-Paul Howard as Student

Logan Paul as Buff College Kid

Luce Rains as Homeless Man

Esodie Geiger as Mrs. Tupelo

Charles Arnone as Mechanic

Stafford Douglas as Entitled Teen

Travis Armstrong as Colorado State Trooper

Matthew Page as Colorado State Trooper

Mia Stallard as Screaming Girl

David Devereaux as Teenage Boy

Jacob Browne as New Mexico State Policeman

Jenny Gabrielle as Havasupai Woman

Gil Birmingham as Shaman Neka

Bernardo P. Saracino as Pilot

Eli Goodman as ER Doctor

Nate Warren as ER Clerk

Ramona King as Reception Nurse

Drago Sumonja as Social Services Man

Colin Egglesfield as Sarah's Brother

Eb Lottimer as Air Force Colonel

Ramsey Scott as Foster Care Worker

Frank Powers as E. Marks / Security (uncredited)

Shad Adair as Astronaut / Shuttle Crew (uncredited)

Nathaniel Augustson as Alfonso (uncredited)

Danny Winn as Dr. Cox (uncredited)

Edsel Pete as Doctor (uncredited)

Marika Day as Nurse (uncredited)

Jamie H. Jung as East Texas Tech (uncredited)

Heather Bash as Banquet Attendee (uncredited)

Shawn Lecrone as NASA Security (uncredited)

Johnny Palomarez Jr. as Genesis Shareholder (uncredited)

Lluvia Almanza as Genesis Shareholder (uncredited)

Thomas Kemp as Genesis Shareholder (uncredited)

Alma Sisneros as Mars Inhabitant (uncredited)

Brian Barela as NASA Executive (uncredited)

Jon Erik Castro as Genesis Shareholder (uncredited)

Lorraine Sanchez as Genesis Shareholder (uncredited)

Kelly V. Lucio as NASA Student (uncredited)