Catherine Halsey - Character - Halopedia, the Halo wiki

Doctor Catherine Elizabeth Halsey,, is a key scientific adviser of the Office of Naval Intelligence, best known for her work with the SPARTAN-II program, developing and creating smart AIs such as Cortana, and for overseeing the

Catherine Halsey, Halo Alpha

Catherine Halsey - Character - Halopedia, the Halo wiki

Olivia-G291 - Character - Halopedia, the Halo wiki

Catherine Halsey - Character - Halopedia, the Halo wiki

John-117, Cubevice Wiki

Catherine Halsey - Character - Halopedia, the Halo wiki

Catherine Halsey (TV show), Halo Alpha

Catherine Halsey, Halo Alpha

Catherine Halsey - Character - Halopedia, the Halo wiki

Catherine Halsey, Halo Alpha

John-117, Wiki Halopedia