Jill Valentine worked under Wesker's mind control from 2006-2009. As Wesker's right-hand man, she killed many people. Thanks to the device on her chest, Wesker could control her. Therefore, Jill was under his command, doing whatever Wesker ordered. She lived under his command for 3 years. She turned into an extremely emotionless, silent and cruel character. Due to the experiments, her hair turned blonde and her eyes turned gray.