Greg Finley was an American actor, voice artist, and a key figure in the field of additional dialogue replacement, or ADR, who built a prolific career spanning over four decades in film and television. Born in Los Angeles on May 8, 1947, he was the son of broadcaster Larry Finley and a cousin of Twilight Zone creator Rod Serling. Following his graduation from Beverly Hills High School in 1965 and military service in Vietnam, Finley initially pursued a path in car sales before deciding to follow his ambition to act. He began his entertainment career with small on-screen roles in the 1970s on shows like Kolchak: The Night Stalker and The Dukes of Hazzard. His entry into voice work came when a former classmate, a producer on CHiPs, invited him to provide ADR for the series, a move that would define the rest of his career.

Finley is perhaps most widely recognized in the anime community for his foundational work on the 1980s syndicated series Robotech. He served as a writer, director, and voice actor on the show, contributing significantly to its creation for an English-speaking audience. Among the characters he voiced were Captain Henry J. Gloval and Commander Anatole Leonard, sometimes using the pseudonym Guy Garrett. In line with the specific mention of his work, Finley also provided the voice for Victor in the anime series Kyōfu Densetsu: Kaiki! Frankenstein. His involvement in these projects established him as a notable contributor to the early days of Western-localized anime.

Beyond his work in animation, Finley's voice became a familiar, if often unrecognized, presence in hundreds of major Hollywood films. As a specialist at The Looping Group, a voice casting company, he contributed to a vast array of projects. His ADR credits from the 1980s onward included blockbusters such as Indiana Jones and the Temple of Doom, Men in Black II, and The Great Gatsby. He also provided additional voices for animated features from major studios, including Disney's Oliver & Company and Lilo & Stitch. A unique and notable achievement was his creation of the specific sounds made by the Cigarette Smoking Man on the iconic series The X-Files.

Finley continued to work regularly in his field until his retirement in 2018, though he still took on occasional projects like The Loud House Movie in 2021. Alongside his on-screen and voice work, he remained deeply involved in community theater, acting, directing, and serving as a board member and president of the Canyon Theatre Guild in Santa Clarita, California. Greg Finley passed away on February 1, 2024, at the age of 76, leaving behind a legacy as a versatile and hardworking artist whose voice contributed to thousands of productions over his long career.