Initially signed for just six episodes, former Prison Break star Robert Knepper has been promoted to a series regular on Heroes.
Knepper will play Samuel on season four of the show, "the reluctant ringleader of a carnival," as the actor explained at the San Diego Comic-Con festival last week.
In the wake of his brother's passing, Knepper added that Samuel "made a decision that his life is not going to be the way it used to be," as he "one-by-one lures the heroes into helping with" this new plan.
Check out the incredible-looking volume five trailer for Heroes to watch this character in action.
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