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James Urbaniak

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James Urbaniak is an American actor. He is acclaimed for his performances in the films Henry Fool and American Splendor, and he voiced Dr. Venture in the series The Venture Bros. One of his first noteworthy roles was in the avant-garde playwright/director Richard Foreman's The Universe, for which Urbaniak won an Obie. He was also nominated for a Drama Desk Award for his role in Thom Pain (based on nothing).

In Adventure Time, he provided the voices of the Rat King and Leaf Beard in the episode "Little Brother."

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