K9 Mark III

K9 is a fictional robotic animal featured in the British science fiction television series Doctor Who. It is the third such iteration of the character and first appeared in the 1981 serial, "The Hand of Fear", which was the second story-arc of season fourteen. K9 also appeared in the stand-alone episode, "A Girl's Best Friend" that same year, which was intended as a pilot episode for a K9 and Company television show which did not materialize at that time. K9 later appeared in the 1983 serial, "The Five Doctors" and was later brought into the 2005 Doctor Who revival series in the series two episode, "School Reunion". Actor John Leeson provided the voice for the K9 Mark III.