Liam O'Brien is a U.S.-born voice actor who is known largely for his roles in video games, but who has also provided voices for a number of anime series, and whose work also includes a number of writer and voice director credits. In the English-language version of Eternal Sonata, O'Brien provided the voice of the main antagonist, Count Waltz. His recent work includes providing the voice of Caius Ballad, the primary antagonist in Final Fantasy XIII-2 and Marchosias in Rise of Nightmares, as well as providing the voiceovers in commercials for the snack Wonderful Pistachios. He tends to be given antagonist or villain roles due to his unique voice, but he has occasionally played the part of kinder characters such as Vayne Aurelious from Mana Khemia: Alchemists of Al-Revis.
O'Brien was born May 28, 1976 in Belleville, New Jersey, U.S.A. He is married to Amy Kincaid and has a child named Owen Kincaid O'Brien.
- Asura's Wrath - Asura
- Dissidia 012: Final Fantasy - Kain Highwind
- Wolverine and the X-Men - Kurt Wagner / Nightcrawler / Warren Worthington III
- Tales of Vesperia - Cumore
- Baten Kaitos Origins - Krumly
- Final Fantasy VII: Advent Children - Red XIII
- .hack//Legend of the Twilight - Tom
- Patlabor: The Movie - Detective Kataoka