Corbin Bernsen
USAF Col. Henry 'Bull' Eckert (22 eps)
Adam Baldwin
Col. Jack Riles (22 eps)
Cameron Bancroft
Capt. Ezekiel 'Zeke' Beaumont (22 eps)
Bobbie Phillips
Navy Pilot Lt. Cmdr. Barbara DeSantos (22 eps)
Bobby Hosea
Marine Pilot Major Reggie Warren (22 eps)
Tyra Ferrell
Mission Specialist Tamara St. James (22 eps)
Katie Mitchell
NASA Chief PAO Andrea Miller (22 eps)
Chad Willett
Peter Engel, ASCAN (22 eps)
David Kelsey
D.B. Woods, ASCAN (22 eps)
