Raldeth

Raldeth or Reldath was a commander in the Chancellery Guard of Gallifrey.

During the Dalek invasion of Gallifrey, he was the leader of the Guards working to repel the Dalek forces. (AUDIO: The Apocalypse Element)

When the other Temporal Powers invaded Gallifrey in the aftermath of the Gallifreyan Civil War, Raldeth assisted Commander Maxil in the defence of the planet. (AUDIO: Appropriation)

In an alternate timeline, he met Coordinator Vansell when he returned to Gallifrey and took him to see the Lord President. (AUDIO: The Sirens of Time)

He was killed during the explosion of the Monan Host embassy cause by the Warpsmith of Phaidon. (AUDIO: Enemy Lines)

Behind the scenes
The character's name has been spelt and pronounced both "Raldeth" and "Reldath."