Karvanista

Karvanista was a Lupari officer and the only surviving member of the Division following the destruction of Gallifrey at the hands of. The Thirteenth Doctor sought him out in her search of information about her past. He was genetically bonded and bound to save Dan Lewis when the Flux came to Earth. (TV: The Halloween Apocalypse)

Biography
At some point Karvanista vanquished the Thousand Civilisations.

The Thirteenth Doctor and Yaz tried to track down Karvanista for information on the Division, albeit unknowingly in Yaz's case as the Doctor would not tell her the reason why. After much annoyance, Karvanista trapped the two hanging by a gravity bar over an ocean of acid, though they managed to escape.

As every Lupar was tasked to save a human from the Flux on Halloween 2021, Karvanista left with his fleet to rescue his designated human, Dan Lewis. A wave of temporal energy caused his ship to arrive a few hours before the rest of the fleet. Karvanista broke into Dan's house and kidnapped him without any explanation. He placed him in an electrified holding cell on his ship and departed into space.

After Karvanista left in his ship with Dan, the Doctor and Yaz traced his ship to Dan's house. They escaped his booby traps, but the Doctor was still able to gather enough information using her sonic screwdriver to trace Karvanista's ship in space, as well as uncover seven billion other Lupari ships heading towards Earth.

Thinking this was an invasion, the Doctor materialised the TARDIS on Karvanista's ship to confront him. She deactivated the ship's power while Yaz freed Dan. The Doctor told him she was there to ask about the Division, but first she needed to know why the Lupari were invading Earth. After noticing a signal that still reached his ship, Karvanista, frustrated, explained the Lupari were bonded to humans and they were arriving to rescue them from the Flux. Before the Doctor could inquire further, the power to Karvanista's ship and weapon was restored, and, alongside Yaz and Dan, had to escape while Karvanista chased and fired at them.

The Doctor, Yaz and Dan escaped in the TARDIS, but after experiencing a vision of Swarm, the Doctor observed the Flux approaching from her TARDIS and told Karvanista to instruct the Lupari fleet to create a barrier around the Earth, protecting it. (TV: The Halloween Apocalypse)

Despite the Lupari shield, a Sontaran fleet managed to sneak through at the last second, which the rest of the Lupari blamed Karvanista for. Dan snuck onto one of the Sontaran Time Carriers in Liverpool, but was caught by Sontaran troopers. Right as they were about to execute him, Karvanista returned and saved Dan. Karvanista set the ship to ram the other Time Carriers, causing them to disappear in a time implosion. He and Dan escaped through a waste vent. When the Doctor returned from the other Sontaran fleet in the Crimean War, she took Dan to find Yaz and tasked Karvanista and the Lupari with looking out for the Earth while she was gone. (TV: War of the Sontarans)

Personality
Karvanista was gruff and found humans, especially Dan, to be annoying. He found it insulting to his species to be compared to a dog, and became angry when Dan mentioned his mother. (TV: The Halloween Apocalypse)

Behind the scenes

 * Karvanista's name may be a reference to the Finnish word "karva", meaning fur.

Карваниста