Lukas Daniel Haas (born April 16, 1976) is an American actor and musician. His acting career has spanned four decades, during which he has appeared in more than 50 feature films and a number of television shows and stage productions. His notable credits include in the films Witness (1985), Mars Attacks! (1996), Inception (2010), The Revenant (2015) and First Man (2018).
Source : Wikipedia