Yvonne Hartley

 was a human who lived on Mondas. She lived with her dad and her brother and worked at the hydroponics centre, which contained the only living plants on Mondas. She had a problem with her chest. When Sisterman Constant came, she recommended that Yvonne be called up.

She was taken to be converted into a Cyberman, but the power failed during processing. She escaped the factory and returned home. She died with her family. (AUDIO: Spare Parts)

If nothing else than in namesake Yvonne Hartman was based on this character, after use of Spare Parts as inspiration for the origins of the new cybermen of this series.