Davide Marzi, born on March 20, 1969, in Palermo, is an Italian voice actor and dubbing artist known for his deep and versatile voice. His birth name is Davide Bottiglieri. He developed an interest in performance from a young age, initially working in private radio stations due to his passion for music. After a period away from the field, he began taking theater courses on a friend's advice, which led to a return to voice work. His entry into professional dubbing was facilitated by a meeting with the legendary dubbing director Pino Locchi, who encouraged him after a successful reading test. He later gained crucial early opportunities through director Tonino Accolla, who cast him in his first film dubbing job.

Marzi has built an extensive career lending his voice to a wide array of anime and animated series. In the world of anime, he is recognized for his work in several high-profile titles. He voiced the character Chris in the 1999 Italian television broadcast of the Lupin III film Farewell to Nostradamus. He has a long association with the Dr. Slump franchise, providing the voice for the character Suppaman in multiple films from the series. These include Dr. Slump & Arale-chan Ncha! Wakuwaku Hot Natsu Yasumi, Dr. Slump & Arale-chan Ncha! Penguin Mura wa Hare no chi Hare, Dr. Slump & Arale-chan: Hoyoyo! The City of Dreams, Mechapolis, and Dr. Slump: Hoyoyo! Space Adventure, among others. He also voiced the Autobot Vector Prime in the Italian version of the Transformers: Cybertron series.

His anime portfolio extends to other major franchises. He was the narrator for the first Italian edition of several Dragon Ball Z movies and specials, including Bardock - The Father of Goku, The History of Trunks, and films featuring Broly. He voiced the narrator as well as the character Razor in the 2011 Hunter x Hunter series, and took on roles such as Castro and Goto in the 1999 adaptation. In the mecha genre, he voiced Shigeru Aoba in Neon Genesis Evangelion: Death & Rebirth and The End of Evangelion, and appeared in Mobile Suit Gundam: The 08th MS Team as Terry Sanders. More recently, his credits include a role in the film Genocidal Organ and as Hugo in the Italian version of Attack on Titan.

Beyond anime, Marzi is a prominent figure in Italian dubbing for live-action and Western animation. He is particularly well-known as a voice actor for The Simpsons, where he was the first voice of Otto Disc and Dr. Julius Hibbert, and currently voices Groundskeeper Willie. He is frequently paired with the actor Mads Mikkelsen, dubbing his performances in films like Rogue One: A Star Wars Story and Polar, as well as the video game Death Stranding. His extensive voice work also includes characters in video games such as Cyberpunk 2077, Horizon Forbidden West, and Borderlands 3. With a career spanning decades and a presence at major industry events like Lucca Comics & Games, Davide Marzi is considered a refined and versatile reference point in the Italian dubbing landscape.