Liam O'Brien is an accomplished actor, writer, director, and producer in the world of animation and games. He's lent his voice to the worlds of Star Wars, Transformers, the Marvel universe, and beyond. He is also a founding member of "Critical Role (2015)", the long running, live-streamed RPG game on Twitch. He plays with fellow actors Matthew Mercer, Taliesin Jaffe, Travis Willingham, Laura Bailey, Sam Riegel, and Marisha Ray. On Critical Role (2015), he is known for playing the characters Vax'ildan Vessar, Caleb Widogast, and Orym of the Air Ashari. He lives in Los Angeles with his wife, Amy Kincaid, and their two children.