Shan
Scientist Shan was a member of the Kaled Scientific Elite towards the end of the Thousand Year War between the Kaleds and the Thals on Skaro. She worked under Coordinator Davros. She wrote a paper suggesting the Kaled race would need to be re-engineered to survive a post-war Skaro, which she called "The Dalek Solution." (BFA: Davros)
Shan supported Davros's experiments at first, but came to be horrified and objected to them. Davros had her arrested and executed as a traitor. The same happened to Councillor Valron. (BFA: Davros, BFD: Corruption)
She was the daughter of Colonel Krakor, a senior member of the Military Elite who was reported as being killed in battle on the same day that Shan was executed. (BFD: Corruption)
Personality
Shan was an altruistic soul, concerned for others. Unlike some other Kaleds, she wanted the war to end and was obviously disgusted when Thals got butchered. (BFD: Corruption)
Shan proved capable of such great courage. She stood up to Davros when he objected to her relationship with Valoran without even a single trace of fear. (BFA:Davros, BFD: Corruption)
Shan was so brilliant that if Davros had not had her killed, she would've been the head of the Scientific Elite instead of him.
Shan showed herself to have a sense of humour as shown when she laughed at Calcula's hysterical reaction to rodent-speciemans that Davros had collected. (BFD: Corruption)