I've never heard of this guy, so I can't speak for his work. Although he's mostly a theatre actor, Walker has had small roles in Clint Eastwood's Flags of Our Fathers
Beast is the X-men's chief scientist and medical doctor. A brilliant philosopher and political activist, Beast is often the voice of reason to the X-men's team leader, Scott "Cyclops" Summers. Once a man of normal appearance with the exception of his oversized hands and feet, Beast performed a scientific experiment on himself which gave him his blue furry appearance. He is also a respected member of The Avengers and a former member of The Defenders.
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