When Resident Evil 2 was still in development, Ada was known as a researcher named Linda who aided Leon across the game, but was changed for the game\'s final form.[6] Ada is voiced by Sally Cahill in Resident Evil 2, Resident Evil 4 and Resident Evil: The Darkside Chronicles,[7] by Megan Hollingshead in Resident Evil: The Umbrella Chronicles, and by Courtenay Taylor in Resident Evil: Operation Raccon City, Resident Evil: Damnation and Resident Evil 6. Cahill said that getting the part of Ada came from doing other voices for the company.[8] Ada\'s costumes include a red casual miniskirt outfit as seen in Resident Evil 2, her now-iconic red dress from Resident Evil 4, a black combat suit from the same game[9], and an outfit consisting of a red leather jacket, black trousers and high-heeled boots from Resident Evil 6.