 Robledo is probably best known in world cinema for his roles in Sergio Leone's Spaghetti Western films of the 1960s and 1970s, portraying minor characters in the trilogy of films "A Fistful of Dollars" (1964), "For a Few Dollars More" (1965), "The Good, the Bad and the Ugly" (1966), and "Once Upon a Time in the West" in 1968.He acted in many other westerns prolifically including the tortured sheriff in "Four of the Apocalypse" (1975).His most notable role in Leone's films (where he is more recognizable) is in "For a Few Dollars More" when he plays the character of a cornered enemy of the main evil villain who tortures him and murders his family before killing him.