One of the meanest looking denizens of B-Westerns, John "Blackie" Whiteford could also play comedy. He made one of his earliest screen appearances as a fellow inmate in Laurel & Hardy's The Hoose Gow (1929). He was a comedy prisoner again in the boys' Pardon Us (1932), but from then on it was B-Westerns all the way. With his scowling demeanor and hefty physique, Whiteford almost always played a thug and usually his appearance went unbilled. If his character had a name, it was always something like Zeke, Jake, or of course, Blackie. He was billed John P. Whiteford in his final screen appearance, John Ford's The Man Who Shot Liberty Valance (1962).