Ian Sinclair is an American voice actor and voice director with a career spanning nearly two decades, primarily associated with anime produced and dubbed in the Dallas-Fort Worth metroplex. Born in Dallas, Texas on March 2, 1984, he began voice acting while studying theatre in college and has since built an extensive portfolio of roles in anime, animation, and video games.

Sinclair's entry into the industry came through FUNimation Entertainment, where he secured his first roles during his sophomore year of college. His early work in the late 2000s included prominent supporting parts in series such as Dallas Genoard in Baccano!, Baldroy in Black Butler, and Romano in Hetalia: Axis Powers. He also took on leading roles like Ryner Lute in The Legend of the Legendary Heroes and the title character in the long-running series Toriko. During this period, he began working as an ADR director, contributing to series such as Initial D, Spice and Wolf II, and Black Butler.

The 2010s saw Sinclair's career expand significantly with several high-profile and fan-favorite roles. He became the English voice of Brook in the FUNimation dub of One Piece, a role he has continued in numerous episodes, specials, and the film One Piece: Stampede. He also took on the comedic and charismatic role of the titular character in Space Dandy. In the world of Dragon Ball, he began voicing the angelic attendant Whis, starting with Dragon Ball Super and continuing in films like Dragon Ball Super: Broly and Dragon Ball Super: Super Hero. An interview regarding Dragon Ball Super: Broly highlighted his perspective on Whis as a detached, amused spectator to the series' conflicts.

Throughout his career, Sinclair has demonstrated a remarkable range, voicing characters across all genres. He has taken on serious, dramatic roles such as Saichi Sugimoto in Golden Kamuy, Tsukasa Shishio in Dr. Stone, and Nile Dok in Attack on Titan. He is equally prolific in comedic and eccentric parts, including the narrator in Kaguya-sama: Love is War, Pipimi in Pop Team Epic, and Ronaldo in The Vampire Dies in No Time. He has voiced Kotaro Bokuto in Haikyu!!, Mezo Shoji in My Hero Academia, Viktor Licht in Fire Force, Azami Nakiri in Food Wars!, and Souei in That Time I Got Reincarnated as a Slime and its spin-off The Slime Diaries. Other notable roles from the extensive list provided include Sha Gojyo in Saiyuki Reload Zeroin, Kureno Soma in Fruits Basket the Final, Yang Wen-Li in Legend of the Galactic Heroes: Die Neue These, and Sherlock Holmes in Case File nº221: Kabukicho.

Sinclair's work frequently involves collaborations with a consistent pool of Texas-based voice actors, directors, and studios, including FUNimation Entertainment, Sentai Filmworks, and Crunchyroll. His ability to perform in both leading and supporting capacities across a wide emotional spectrum has made him a sought-after talent in the industry. In addition to his on-camera and stage work, he remains active in the video game industry, with credits including Baron Flynt in the Borderlands series, Berkut in Fire Emblem Echoes: Shadows of Valentia, and Zaveid in Tales of Zestiria. His enduring presence and versatility have established him as a central figure in modern English anime dubbing.