Luis Alfonso Manuel Machín (born in Rosario, Santa Fe Province, on 10 April 1968) is an Argentine theater, film and television actor. He has appeared in several Argentine films, such as Felicidades (2000) and Un oso rojo (2002), but his work has mainly been on television, notably in the series Son amores, Padre Coraje (2004), and Montecristo (2007).