Sergio Graziani was an Italian actor and voice actor born in Udine, Italy, on November 10, 1930, who passed away in Rome on May 25, 2018. He attended the Silvio d'Amico National Academy of Dramatic Arts, launching a career that spanned from the late 1950s to 2014.

Graziani is well known in the world of animation dubbing. He is recognized by fans of the anime series Saint Seiya for his role as the character Dohko of Libra in the film Saint Seiya: Legend of Crimson Youth, where he provided the character's voice for the second official Italian dubbing. His other notable voice roles in animation include the character Jin Fukube in the series Mobile Battleship Nadesico, a priest in Night Warriors: Darkstalkers' Revenge, and Professor Hodgson in Serial Experiments Lain. He also gave his voice to the character Professor Farnsworth for the first five seasons of the series Futurama, as well as for the subsequent direct-to-video films. His other prominent animated roles include voicing Meowrice in Gay Purr-ee, Stan's grandfather in South Park, Dr. Vosknocker in South Park: Bigger, Longer & Uncut, and Mr. Bloomsberry in Curious George.

Outside of animation, he was the official Italian dubbing voice for actors Donald Sutherland and Peter O'Toole in most of their film performances. He also worked as a dubbing director, collaborating with directors Damiano Damiani and Dario Argento.