Samuel Stewart "sam" Witwer (born october 20, 1977) is an american actor and musician. He has appeared in individual episodes of numerous television shows as well as minor recurring characters in shows such as battlestar galactica, davis bloome aka doomsday in smallville, csi: crime scene investigation, and dexter. He also voiced, and gave his likeness to the main protagonist, galen marek/starkiller, in the star wars: the force unleashed video game and its sequel. He voiced the son in season 3 of the clone wars & darth maul in the final two episodes of the fourth season and will continue to voice him in season 5 of cartoon network's star wars: the clone wars. He is also star of the us/canadian remake of bbc's supernatural drama series being human on syfy in the us and space in canada.

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