Welcome to the section on Mr "Fancy Pants" and his companions. The third doctor was well played by the cheeky but rarely rude Jon Pertwee. As any one who has has ever seen the Three or Five doctors would know the third doctor and the second one simply refused to agree about anything which is surprising since they seem to be quite similar in my eyes. One definite similarity between the two is how cheeky they both are although the third doctor was better at being serious. The third doctors companions were Jo Grant, Sarah Jane,The Brigadier and Liz Shaw although unlike the companions of the other doctors these didn't get to travel with him much since The Time Lords erased his memory of how to operate his TARDIS and I believe they also took his dematerialisation circuit. He did get to travel a few times though like in Inferno when he "slipped sideways" and on another story (I forget it's name) where The Time Lords needed his help so they sent him somewhere then brought him back when he had finished the job like he was an "Intergalactic Yo-yo". The third doctor regenerated when he was killed by the Spider's of Metebelis Three. This Doctor's excuse for being unable to pilot the TARDIS (when he used her) was the fact that he had had his memory erased and he shouldn't have been able to pilot her anywhere without the dematerialisation circuit.