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

Olympia Vale - Character - Halopedia, the Halo wiki

Margaret Parangosky - Character - Halopedia, the Halo wiki

Cortana - Character - Halopedia, the Halo wiki

James Ackerson - Character - Halopedia, the Halo wiki

Carter-A259, Halo Alpha

Character Profile: Dr. Catherine Halsey (Halo) – Eggplante!

Catherine Halsey, Halo Alpha

Catherine Halsey - Character - Halopedia, the Halo wiki

Kurt Ambrose - Character - Halopedia, the Halo wiki

Catherine Halsey - Character - Halopedia, the Halo wiki

Spartan Characters - Giant Bomb

Catherine Halsey (TV show), Halo Alpha

Linda-058 - Character - Halopedia, the Halo wiki