- as Commander Tom Chandler
- as Lt. Alisha Granderson
- as Dr. Rachel Scott
- as Amy Granderson
- as XO Mike Slattery
- as Tex Nolan
- as Lieutenant Danny Green
- as Doc Rios
- as Command Master Chief Russell Jeter
- as Lt. Carlton Burk
- as Dr. Quincy Tophet
- as Gator
- as Lieutenant Kara Foster
- as Andrea Garnett
- as Comms Officer Will Mason
- as Cruz
- as Lt. Andy Chung
- as Bertrise
- as Kelly Tophet
- as Sam Chandler
- as Ashley Chandler
- as Lt. Pete Norris
- as Darien Chandler
- as Jed Chandler
- as Thorwald
- as Miller
- as Engineer Lynn
- as O'Connor
- as Bacon
- as TAO Barker
- as Ava Tophet
- as McGregor
- as Michael Neustadter
- as Dr. Hamada
- as Lt. Landau
- as State Trooper #1
- as Dying Man
- as Female Technician
- as Power Plant Operator
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