Kalan

Kalan was a Rovidian street-urchin who assisted the War Doctor.

He called the Sontarans moonheads. He showed the Doctor where the Sontaran's had put Ollistra. (AUDIO: The Eternity Cage)

He tried to save the Doctor. He was delighted that once the Sontarans had gone his people started to attack the Daleks to save the Time Lords. With Ollistra's help he managed to stop Heleyna from getting taken them to the Daleks. He tried to stopped Heleyna from staying behind in the disintegrating Eye of Harmony chamber and was shot by a Dalek but wasn't mortally wounded. He started hearing his father's voice due to his exposure to the Time Vortex. (AUDIO: Eye of Harmony)