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"CLAIRE IS A LIGHT-HEARTED, ARTICULATE, MORDERN WOMAN. WHILE SHE CAN BE A BIT OF A TOMBOY AT TIMES, SHE IS SOMEWHAT WILD. SELF-CONFIDENT AND EXTROVERTED, CLAIRE IS TYPICALLY THE FIRST PERSON TO TRY SOMETHING OTHERS WOULD NOT."
— Resident Evil 2 Nintendo 64 Manual, p.3
According to Alyson Court, Claire's likeness was based on Neve Campbell in Resident Evil 2 and Liv Tyler in Code: Veronica.
The designs on the jackets of both of Claire's primary outfits in Resident Evil 2 and Resident Evil Code: Veronica contain references to the band Queen. "Made in Heaven" (from RE2) and "Let Me Live" (from CV) are both names of Queen songs. She shares this trait with Billy Coen (whose tattoo, "Mother Love", is also the name of a Queen song).
Claire's Resident Evil 2 original outfit has a "Made in Heaven" design on the back. The same logo has her brother, Chris, on the jacket of his alternate outfit, in Resident Evil.
In Resident Evil 1.5 (the original prototype version of Resident Evil 2), a blonde-haired motorcyclist named Elza Walker was featured as the heroine of the game instead of Claire Redfield. She was unrelated to Chris Redfield and was instead a college student attending Raccoon University and wore a red and white leather suit with the Raccoon University logo (probably a uniform). Otherwise, the character was identical to Claire and the two even shared the same personal data. According to Research on Biohazard 2: Final Edition, Elza's backstory was similar to Claire's, in which she comes to Raccoon in search of a missing person. In Resident Evil 1.5, Elza's supporting characters were Sherry Birkin (like in the released version) and an early version of Robert Kendo (the gun shop owner), which was originally known as "John". The reason for transforming Elza into Claire was done to create a greater tie between the original game and the sequel without reusing an old character.
CAPCOM had originally planned not to have any siblings in the series, but after a few changes in the storyline for the games, Chris and Claire Redfield were made into a brother and sister pair.
Claire is pictured on the cards in both SNK vs Capcom Card Fighter's Clash and SNK vs Capcom: Card Fighters Expand Edition.
Claire is one of the playable characters in Capcom's Trick'N Snowboarder.
In the Nintendo DS game Viewtiful Joe: Double Trouble, there is a picture of one of the enemy foot-soldiers dressed as Claire.
One of C. Viper's color schemes in Ultimate Marvel vs. Capcom 3 borrows heavily from her iconic look.
During her story in Resident Evil: Revelations 2, Claire quoted to Moira about herself almost being a Claire sandwich after nearly squished from a booby trap is a reference to Barry's famous joke about the "Jill sandwich".
In the climax fight of Resident Evil: Revelations 2, Claire shoots her RPG-7 towards Monster Alex with a single shot in explosion; a reference to the near end of Resident Evil 5 where her older brother, Chris and his partner Sheva shoot their RPG-7 towards the mutated Albert Wesker with both shots in explosion.