Polly

Polly was a woman from London who works for a computer expert and became involved with the Doctor on his battle against WOTAN who had hypnotised her. She accidentally entered the Tardis with Ben, she became a companion of the Doctor and witnessed the Doctor's first regeneration.After the Chameleon invasion, she and Ben said goodbye to the Doctor and stayed in twentieth-century England.

Polly was in The War Machines: Episode 1 to The Faceless Ones: Episode 6. Excluding The Power of the Daleks: Episode 4 and The Faceless Ones: Episodes 3,4 and 5.