Bliss

Bliss was a companion of the Eighth Doctor. They met onboard the Theseus.

Caught up in the Time War
When a Time Lord agent crashed onboard the Theseus, it allowed the Daleks to enter the ship in search for the Time Lords. Once onboard, they went on to kill all passengers and crew. Bliss was part of a group of survivors that the Doctor rounded up in order to escape via his TARDIS. However, the TARDIS was not where the Doctor had landed it, so he led them back to a Dalek ship which had been left by them. (AUDIO: The Starship of Theseus)

The Doctor tried to escape, but the ship was badly damaged and it fell down to the planet below. This planet was a jungle planet, yet fallout from the Time War badly affected it and it went through constant states of flux, with the jungle dying, and then growing back again over and over again. The Dalek ship was not empty as the group had thought, with it containing a Dalek who had lost its memory and therefore did not display normal Dalek personality traits. The Doctor quickly christened this Dalek; Dal in order for it to not discover its true species name, the possibility of it remembering what it is was too risky.

Dal discovered a temporal safe zone, and so began to lead the group on its way there. However, on the way, the group were attacked by primate-like creatures, and the Doctor was amongst those taken. Due to this, Dal elected Bliss as the new group leader, and they continued to press onwards to the safe zone. On arrival at the zone, the group found those who had been taken there. They discovered the creatures were benign, they had simply been affected by the fallout of the War, and were trying to ask for help.

The Doctor found that the TARDIS had been damaged by the fallout, and so in an attempt in healing itself, it prevented all access to the console room. At this time, numerous TARDISes arrived in the zone, Cardinal Ollistra being a part of the group of Time Lords having just landed. Dal was destroyed, despite the Doctor's effects and Bliss, with the rest of the survivors were taken via TARDIS to a nearby Gallifreyan Military Moon Base. (AUDIO: Echoes of War)