Countdown X – Alarm im All

Corbin Bernsen

USAF Col. Henry 'Bull' Eckert

Adam Baldwin

Col. Jack Riles

Cameron Bancroft

Capt. Ezekiel 'Zeke' Beaumont

Bobbie Phillips

Navy Pilot Lt. Cmdr. Barbara DeSantos

Bobby Hosea

Marine Pilot Major Reggie Warren

Tyra Ferrell

Mission Specialist Tamara St. James

Katie Mitchell

NASA Chief PAO Andrea Miller

Chad Willett

Peter Engel, ASCAN

David Kelsey

D.B. Woods, ASCAN