Ernesto Jason Liebrecht is an American voice actor known for his extensive work in English dubs of Japanese anime series and video games. He has been active in the industry since the early 2000s, primarily providing voices for productions by companies such as Funimation (now part of Crunchyroll), ADV Films, and OkraTron 5000. Before becoming established in voice acting, Liebrecht had a background in stage and independent film, including a leading role in the indie film Home, for which he received a best actor nomination at the Trenton Film Festival, and he is a member of the Austin-based theatre collective Rude Mechs.

Liebrecht's career encompasses a wide range of significant roles across many popular anime franchises. In longer-running series, he is known for voicing characters such as Lavi and the Millennium Earl in D.Gray-man, Train Heartnet in Black Cat, Syaoran in Tsubasa: Reservoir Chronicle and Cardcaptor Sakura: Clear Card, Hei in Darker than Black, Rob Lucci in the Funimation dub of One Piece, and Yato in Noragami. He has also taken on prominent roles in major hit series, including Zeke Yeager, the Beast Titan, in Attack on Titan and Dabi in My Hero Academia.

In addition to these well-known parts, Liebrecht has voiced a multitude of characters in various other series. His filmography includes roles such as Finnian in Black Butler, Tapion in Dragon Ball Z: Wrath of the Dragon, Champa in Dragon Ball Super, Mars in Black Clover, Vulcan Joseph in Fire Force, and Qrow Branwen in the animated series RWBY from Volume 7 onward.

Among his many credits are the specific roles listed in the query. He is credited as the voice of Taira Nakamura in the sports anime Aoashi and as Takt Asahina in takt op. Destiny. In Requiem of the Rose King, he voices Edward, a role announced by Funimation when the English dub premiered. He plays the character Tesla in the series Full Dive. In the fantasy series How a Realist Hero Rebuilt the Kingdom, he is the voice of Castor Vargas, and he voices Manstall in the film BEM: BECOME HUMAN. Liebrecht also voices the protagonist Iska in Our Last Crusade or the Rise of a New World, a role he reprised for its second season. He is credited as Titan in Show By Rock!! Stars!! and as Hugh Mercury in Sugar Apple Fairy Tale.

Throughout his career, Liebrecht has frequently collaborated with other voice actors and crew members within the Texas-based voice acting community. He has often worked under the direction of voice directors like Shawn Gann on numerous projects. His body of work demonstrates a long-standing and central presence in English anime dubbing, with a particular concentration in productions by Funimation and Crunchyroll.