Lieutenant Colonel Sarah "Mac" MacKenzie
Season Two:
Season Three:
- Ghost Ship
- The Court Martial of Sandra Gilbert
- The Good of the Service
- Blind Side
- King of the Fleas
- Vanished
- Against All Enemies
- Above and Beyond
- Impact
- People v. Rabb
- Defenseless
- Someone to Watch Over Annie
- With Intent to Die
- Father's Day
- Yesterday's Heroes
- Chains of Command
- The Stalker
- Tiger, Tiger
- Death Watch
- The Imposter
- The Return of Jimmy Blackhorse
- Clipped Wings
- Wedding Bell Blues
- To Russia With Love/Gypsy Eyes