Claire Redfield was created by Isao Ōishi and Hideki Kamiya during the development of Resident Evil 2 in 1996, with the former responsible for the design and the latter for character traits. In the first year of development, Claire went by the name "Elza Walker", and was said to be a motorcycle racer and student at Raccoon University. When the game entered a period of heavy alteration in the Spring of 1997, Elza's hair changed from blonde to auburn, with her name changed to establish a relationship with Chris Redfield, one of the previous game's protagonists. In a similar manner to the cast of the original Resident Evil, Oishi followed a colour scheme for the Resident Evil 2 main cast to better stand out. In this case, Claire and Leon were used red and blue primary colours, while sidekicks Sherry and Ada used blue and red, respectively.