Claire Redfield (クレア・レッドフィールド, Kurea Reddofīrudo^?) is a player character appearing in the Resident Evil series of survival horror video games.

Claire is the younger sister of Chris Redfield, the protagonist of the first Resident Evil game. She is the female protagonist of Resident Evil 2 and Resident Evil Code: Veronica, also appearing in Resident Evil: The Darkside Chronicles (a re-telling of the events of RE2 and Code: Veronica), the CG-animated film Resident Evil: Degeneration, and the live-action films Resident Evil: Extinction and Resident Evil: Afterlife.

Claire Redfield was originally known as 'Elza Walker', the female lead in the original version of Resident Evil 2 (in 1997, after a year of work, this version of the game was scrapped by the development team and is now widely referred to as Resident Evil 1.5). In the released version of the game, Elza Walker, a college student and motorcycle racer, was changed into Chris Redfield's sister, Claire. Her appearance and background remained mostly unchanged, but she now had an explanation for her skills with firearms and other weapons and her reason for coming to Raccoon City was to search for Chris, as opposed to trying to recruit fans at Raccoon City university to form a racing team back in her hometown. Comparatively, Claire shares the same age and blood type as Elza, in contrast, her hair was made auburn as opposed to blonde. She was also given physical features which more closely resemble her brother, her signature jacket with a Goddess of Fate printed on the back, and a sheath for a standard-issue STARS knife from Chris. The changes that occurred were done to connect Resident Evil 2 to the original game.

Alyson Stephanie Court (born November 9, 1973) is a Canadian actress who first appeared in the 1985 children's film Sesame Street Presents Follow That Bird, and played summer camper Dawn in the animated film Care Bears Movie II: A New Generation the following year. She played Loonette the Clown, the lead character of the Canadian children's television series, The Big Comfy Couch, from 1992 to 2003. Court has been the only actress to voice Claire Redfield, in the Resident Evil series, having voiced her in Resident Evil 2, Resident Evil Code: Veronica, the CG animation movie Resident Evil: Degeneration, Resident Evil: The Darkside Chronicles, and Resident Evil: Operation Raccoon City. In addition, she returned to the series in 2003, but did not voice Claire, and instead directed the voice-over and motion capture portions of the spin-off title, Resident Evil Outbreak.

From 1999 to 2003, she was the host of the morning children's programming block on CBC, Get Set for Life (now Kids' CBC). In addition, Court appeared as herself on Mr. Dressup from 1984 to 1994.

Rebecca Chambers (born 31 May 1975) is a concert pianist from Melbourne, Victoria, Australia. In 1996 she was named Young Australian of the Year. She was educated at Victorian College of the Arts. She made her debut as piano soloist with an orchestra at age 7.

She won the piano section of the ABC Young Performers Awards in 1993 and has performed around Australia with every symphony orchestra. She received the Roy Rubinstein Award while pursuing her master’s degree at the Manhattan School of Music. A solo performance with the Manhattan Symphony at the Lincoln Center for the Performing Arts in New York was her professional debut overseas. She also received the John Gaitskell Mensa Award for highest academic and performance achievement.

When interviewed by the Sydney Morning Herald in 2003 for a story about how winners of the Young Australian of the Year Award thought their country had changed Rebecca stated:

Jill Valentine (ジル・バレンタイン, Jiru Barentain^?) is a fictional character in the Resident Evil survival horror series by Capcom.

Jill is one of the two protagonists of the original Resident Evil game, where she was introduced as a member of the Raccoon Police Department's Special Tactics And Rescue Service (STARS), trapped in a secret research complex of the sinister Umbrella Corporation. She returned as the protagonist in Resident Evil 3: Nemesis, where she escapes Raccoon City following the zombie outbreak; in Resident Evil: The Umbrella Chronicles, in which she and Chris Redfield raid Umbrella's Russian base; in Resident Evil 5, as a founding member of the UN-funded paramilitary group Bioterrorism Security Assessment Alliance (BSAA); and in Resident Evil Revelations which is set during her earlier years in the BSAA.

The film version of Jill appears in Resident Evil: Apocalypse, Resident Evil: Afterlife and Resident Evil: Retribution, where she is played by Sienna Guillory.

During development of the original Resident Evil game, Jill was conceived as physically weaker than the male protagonist Chris Redfield, but she was given more skills and weapons to compensate for this. The development team for Resident Evil 3: Nemesis commented that Jill was deliberately designed to make her "beautiful for everybody" and appeal to both male and female gamers, as males would find her physically attractive and females would see her as a tough role model.

Ada Wong (エイダ・ウォン, Eida Won^?) is a game character in the Resident Evil series. Ada is a mysterious and ambiguous antihero figure, working for the series' villains but also helping the hero Leon. She debuted in Resident Evil 2 in 1998 and since then became one of the most popular female characters in the series, alongside Jill. The film version of Ada is set to appear in Resident Evil: Retribution, played by Li Bingbing.

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.

Ada is voiced by Sally Cahill in Resident Evil 2, Resident Evil 4 and The Darkside Chronicles, and by an uncredited actress in The Umbrella Chronicles. Cahill said that getting the part of Ada came from doing other voices for the company. Ada's costumes are her iconic red dress (including appearing with a Tommy gun in a homage reference to the 1979 gangster film The Lady in Red) and a black combat suit.

Producers of the Resident Evil live-action film series reportedly "chose her as a foundation for Alice."