Callen Lennox

Callen Lennox was a companion of the Ninth Doctor. He had a pet dog called Doyle who was trained to help support Callen who was partially sighted a mixture of macular degeneration and red-green colour blindness. 
Callen and Doyle met the Doctor on Solis Kailya when his mother was researching the planet's properties to revolutionise colony farming. They encountered the Vashta Nerada, who had allied themselves with the Vermine. After they were defeated, the Doctor welcomed them aboard the TARDIS until he could find them a new home. (AUDIO: )
After travelling with the Doctor for a time, Callen and Doyle arrived on The Greenwood. He became interested Tay Lothlor, and learnt from Doyle about something strange he saw so started to investigate. He realised that one of the guardians was using giant maggots as a battery farmed heat exchange. He sent Doyle to get the Doctor to help Tay. After Tay was cured, he and Doyle decided to settle down on New Earth. (AUDIO: )
Category:Human Ninth Doctor companions
Category:Companions of the Doctor
Category:Humans who have been inside the Doctor's TARDIS