Polly Church was an actor in Hollywood during the 1930s.
On set for Queen for a Day, she, along with many other actors in a Hollywood studio, were Cyber-converted into Cybermen.
Polly's father put out a bounty on her, which was found by the Lesser Order of Oberon, to mercy kill her. Doom took the mission in an effort to find the Doctor and defeated her along with the other Cybermen using explosives and gold coins. (COMIC: High Noon in Hollywood)