Matt Johnson as Matt Johnson

Owen Williams as Owen Williams

Jared Raab as Jared Raab

Josh Boles as Josh Boles

Andrew Appelle as Andrew Appelle

Ray James as Director Brackett

Sharon Belle as Sharon Belle

Krista Madison as Julie Williams

Joe J. Thomas as James Webb (voice)

John Henry Robson as Baby Simon

Madeleine Sims-Fewer as Madeleine

Tom Bolton as Agent #1

Johnny Osmokrovic as Agent #2

Chris Gonsalves as Agent #3

Brad Brackenridge as Texas Studio Manager

Antonin Lhotsky as Antonin Lhotsky

Massimo Di Liberato as Simon (2 years)

Samantha Michelle as Helena

Emilie Paquet as N.A.S.A. Secretary

Joe Anastasio as Scientist