Sophie Roberts is the professional name used by the American voice actress Michelle Ruff for select credits in anime dubbing, including the role of Lan in the series Lagrange: The Flower of Rin-ne. Under this pseudonym, she has contributed to the English language adaptations of Japanese anime.

As an actress, Roberts has a background in improvisational comedy and acting, having studied at institutions such as The Second City and Improv Olympic in Chicago before moving to Los Angeles to pursue voice work. Her career in anime began in the early 2000s, and she has since become known for a wide range of roles. While many of her most prominent parts are credited under her birth name, Michelle Ruff, the Sophie Roberts alias appears in specific projects.

In Lagrange: The Flower of Rin-ne, Sophie Roberts voices the character Lan, a mysterious alien girl and princess from a faraway planet who becomes a central figure in the story's mecha-centric plot. Her performance as Lan has been described as having a cool, calm, and mysterious tone, fitting the character's enigmatic nature.

Beyond this role, the body of work associated with the name Sophie Roberts is intrinsically linked to the broader career of Michelle Ruff. This extensive career includes major roles in numerous popular anime series. She is known for voicing Rukia Kuchiki in Bleach, Yuki Nagato in The Melancholy of Haruhi Suzumiya, Yoko Littner in Gurren Lagann, Fujiko Mine in various Lupin the Third installments, and Sinon in Sword Art Online. In video games, her work includes voicing Yukari Takeba in the Persona series and Jill Valentine in the Resident Evil franchise.

Her achievements in the industry include nominations for the American Anime Awards in 2007 for Best Actress for her work in Bleach and Lupin the Third. In 2009, she received the SPJA Industry Award for Best Voice Actress (English) from the Society for the Promotion of Japanese Animation for her performance as Rukia Kuchiki in the film Bleach: Memories of Nobody.