In this task, you're given a passage, further information available on a particular linked term from the statement, and a question. Your job is to generate the answer to the question by using the information provided. If there is no clear answer obtainable, output 'none'.
Q: Passage: As a voice actor, Miller has appeared in over 100 animated productions and video games. Some of his credits include work on World of Warcraft, Wonder Woman, , Hellsing, Read or Die and the Nickelodeon produced . His film credits include , the 2008 remake of Day of the Dead and the Sci Fi Channel's Battle Planet. He worked on a cover album from the fighting game series Guilty Gear, titled Guilty Gear XX in N.Y. Vocal Edition, where he supplied vocals over the instrumentals to create a full vocal album. In 2011, he lent his vocals to another cover album, this time for , the successive fighting game series to Guilty Gear, titles BlazBlue in L.A. Vocal Edition. He provided the voice of Robert Kendo in Capcom's video game for the Wii. In 2011, he appeared in an episode of the web series The Guild. His voice can be heard in the digital collectible card game by Blizzard Entertainment, Hearthstone. Since 2017, he is part of the duo The Deadly Grind. In 2019, Miller provided the vocals for the song "Shadowbringers", the theme song for Final Fantasy XIV's third expansion of the same name.
Link Information: none Question: Who is the CEO of the company that produced Hearthstone?
A:
Answer: none