Danny who? Danny Trejo. You've seen him in lots of things, especially if it is associated with Quentin Tarantino or Trejo's cousin, Richard Rodriguez.
Trejo was born in 1944 and spent most of the 1960's in various prisons for armed robbery and/or drug related offenses. While in prison, he got clean and became a prison boxing champion. After his release, a man working on the movie Runaway Train called Trejo for support after hearing him speak at a Cocaine Anonymous meeting. This led to Trejo working on the film, first as an extra, eventually as Eric Robert's boxing coach. This was the beginning of Trejo's over 20-year run of steady employment in movies and television. Short, muscular, tattoed, with a scarred face, Trejo nearly always plays a bad guy who gets his in the end (although he is the only actor to have appeared in all three of the From Dusk Til Dawn movies. He has also been in the movies Heat, Desperado (as the knife throwing Navajas), Anaconda, Con Air, Spy Kids as well as appearing in episodes of Baywatch and Walker: Texas Ranger.
Married and the father of three, he and his wife Debbie founded the canine rescue foundation K9 Compassion.
Danny Trejo imdb biography
Danny Trejo wiki article