Ida Scott was part of the crew on Krop Tor researching the black hole known as K37 Gem 5.
This lump of rock is suspended in perpetual geo-stationary orbit around that black hole without falling in. Discuss.
History
But if this is the original, does that make it real? Does that make it the actual Devil?
Ida Scott was the science officer in the Walker Expedition and was researching the previous civilization who enabled the planet to orbit a black hole and trying to discover the power source that was holding the planet in orbit. She also accompanied the Doctor down into the pit within the planet. (DW: The Impossible Planet)
She was rendered unconscious and suffered mild oxygen starvation because her oxygen supply ran out, but luckily she was rescued by the Doctor and reunited with her crew. (DW: The Satan Pit)
Personality
And yet here we are. Beyond the laws of physics.
Ida Scott is very self-confident as she as the ability to commands a ship. She also seems tough as she can go through extreme near-death situations and still take as much control as possible.
She also is faithful to her crew and takes it hard to face that on of the members of her crew had attacked other members. She also becomes faithful and loyal to the Doctor and Rose as she starts to take orders from them.