Rear Adm. Thomas Mallory (22 Episodes)

Maggie Farrell (22 Episodes)

Lt. Glenn Matthews (22 Episodes)

Lt. Cmdr. Jack Warren (22 Episodes)

Navy Lt. Simon Adams (22 Episodes)

Hilary Adams (22 Episodes)

Ensign Leslie Mallory (22 Episodes)

Celia Mallory Matthews (22 Episodes)

Deanna Kincaid (22 Episodes)

Adm. Yuri Bukharin (22 Episodes)

Harlan Adams (22 Episodes)

Harlan Adams (22 Episodes)

David Marquette (22 Episodes)

Ben Eastman (22 Episodes)

Commander Lawrence / Commander Laurence (2 Episodes)