Veklin

Veklin was a Time Lord Commander during the Last Great Time War. She was Cardinal Ollistra's most loyal servant. (AUDIO: The Side of the Angels)

The Doom Coalition
Captain Veklin and Acting Castellan Volstrom were ordered by Cardinal Ollistra to spy on the Doom Coalition, (AUDIO: Songs of Love) with Veklin pretending to be part of the Chancellery Guard loyal to Cardinal Padrac. She helped kill temporal refugees by travelling between their ships using her Battle TARDIS. Later, she was hit by the Nine with his regen gun and arrested River Song. (AUDIO: The Crucible of Souls)

Arriving in New York City, she was tasked with looking after Liv Chenka and Helen Sinclair, but they went missing. She later contacted to get him to talk with the Weeping Angels.

Whilst talking the Eleven when she realised the Monk had made an arrangement with him in order to save his own neck, she was attacked by an angel and sent back in time 60 years. She became a gangster and helped Joanie Carrington get elected. She managed to get to Ollistra when the angels were attacking in time to see her regenerate. (AUDIO: The Side of the Angels)

The Last Great Time War
Veklin and Strato picked up Susan Campbell in a crumbling Battle TARDIS (AUDIO: Sphere of Influence) after she responded to a hypercube. (AUDIO: All Hands on Deck) Whilst Strato was killed, Veklin also picked up Ian Chesterton and travelled with him and Susan in a Diplomatic TARDIS to the Sense Sphere to negotiate with the Sensorites. (AUDIO: Sphere of Influence)

Veklin served under Cardinal Ollistra during the War and was assigned to find the War Doctor after the explosion of the Time Destructor. Later, she found him on the planet Keska. (AUDIO: The Innocent)

After the return of the Doctor in Gallifrey, she was asked by Ollistra to lead a team consisting of the Doctor, Bennus and Arverton to rescue the Time Lord strategist Seratrix. Because the Doctor does not want to be under the team, he left them and went to the Null Zone before them. Veklin, together with the remaining members of the rescue mission, followed the Doctor to Keska. (AUDIO: The Thousand Worlds) While infiltrating the citadel, Arverton died under her watch before they reached Seratrix and the Doctor. (AUDIO: The Heart of the Battle)

During the assault of the Dalek Time Strategist on Grend, Veklin, now a Commander of an entire Time Fleet, brought reinforcements for Ollistra and the War Doctor. (AUDIO: The Lady of Obsidian)

Behind the scenes
Veklin was credited as "Captain" for The Crucible of Souls.