Fleshsmith

The Fleshsmiths were a race of legend who created bodies for their clients.

Technology
The Fleshmiths had the technology to create any kind of body no matter how complex the biology. They were notable for being able to fully recreate a Time Lord body including regeneration capabilities. (PDA: Prime Time)

History
The Master hired the Fleshsmiths to create a new body for him, the body the Master was in at the time had been infected by the Cheetah Virus and was beggining to die. The Fleshmiths were stopped by the Doctor who disabled their ship and ejected the new body created for the Master into space. (PDA: Prime Time)