Tamasan

Tamasan was the pilot of Ollistra's Battle TARDIS.

She took Ollistra to get the Eighth Doctor on a jungle planet. She was a member of the Third Patrex Battalion. After Ollistra met with the Doctor, she arrested Bliss, Rupa Maguire, and Quarren Maguire. (AUDIO: Echoes of War)

She wanted to get the Celestial Intervention Agency involved in decontaminating the prisoners, but Ollistra didn't want to get them involved. She was in her third incarnation by the time she met the Doctor and had been fighting on the front line for 120 years. She was to be promoted if her next mission was successful and train the Doctor for war. She was the main trainer for his troop. When the Daleks attacked, she led the battle and told the Doctor where Bliss was. (AUDIO: The Conscript)

She later regenerated, was promoted to Major and met the Doctor and Bliss again. She travelled to Derilobia, and eventually ordered the evacuation of the planet when the Daleks attacked. She rescued the Eighth Doctor and Bliss with her TARDIS, while she sacrificed Carvil and his TARDIS. (AUDIO: The Lords of Terror)

She was present on Gallifrey when Doctor Ogron arrived there in the Doctor’s TARDIS. (AUDIO: Planet of the Ogrons)

After regenerating once more, and expressing a distrust towards Bliss to the Doctor, (AUDIO: State of Bliss) Tamasan contacted the Doctor again after he had left the Vale of Iptheus to ask for his help to stop the Dalek Time Strategist's plan to attack the Multiverse. (AUDIO: The Famished Lands)