Current commanding officer of the ISS Defiant (NX-74205).

Carla was born in the Mirror Universe while it was still under the rule of Emperor Spock. She graduated the Empire Academy at the age of 23 and was immediately assigned to the ISS Bozeman under the command of Captain Morgan Bateson. After murdering the current Chief Tactical Officer Lt. Cmdr. Laville served with distinction for the Empire earning multiple awards for valor as she slid in to his position. Captain Bateson was impressed with her skills and ambition.  

During a freak accident during battle with the Romulans, the Bozeman was thrown forward in time through a temporal rift. Unknown to the crew of the Bozeman at this time, the rift wasn't just temporal. It also thrust them in to an alternate universe. The Bozeman nearly collided with the 24th century USS Enterprise as it emerged from the rift but narrowly escaped this fate.

The ISS Bozeman sought out their counterparts and destroyed their ship with all hands aboard in order to take their place. 

Lt. Cmdr. Laville was eventually transferred to the USS Sarasota. The Sarasota was assigned to monitor and protect Gateway, the home of the Guardian of Forever. During a duty tour on the planet's surface, Lt. Cmdr. Laville discovered how to activate the Guardian and used it to travel back in time to the 23rd century. Using her future skills and knowledge she found her own counterpart and replaced her on this universe's 23rd century USS Bozeman. 

In 2278 she studiously took shore leave on Earth just before the Bozeman would encounter the temporal rift and get displaced to 2368. The Bozeman disappeared with all hands and was presumed lost.

First officer and science officer (aka the "Captain's woman") of the ISS Defiant. Also, Capt. Carla Laville's wife. Shadow hails from Romulus. 

Cale was born on Titan and entered the Empire Battle Fleet at an early age. His first posting was to the ISS Shenango, a heavily armorer border patrol cutter. The Shenango was one of the first ships to tangle with the Borg. The Shenango's Captain and most of the command crew was killed during the battle. Then Ensign Solo took command and barely managed to save the ship by escaping into the upper atmosphere of a local gas giant.

Promoted to Lieutenant Commander upon his posting as engineer aboard the ISS Defiant. Currently pulling double duty as engineer aboard ship and acting Starbase Commander of Starbase K-69.

Defiant physician

Helm & navigation. Ensign Keneinan has zero experience and her career in the Terran Empire Battle Fleet is incredibly short. She has used her obvious "skills" to work her way up through the Admiralty in order to get posted to the Defiant.