Sam Nelson
Sam Nelson was a director and assistant director who worked from the end of the silent era right up through the early 1960s. While most of his film work was in the assistant director role, he did direct over 20 films during the 1930s and 1940s, all of which were westerns. As an assistant director he worked on such notable films as Pennies from Heaven, And Then There Were None, All the King's Men, the original 3:10 to Yuma, Some Like It Hot, A Raisin in the Sun, and Spartacus. In addition he appeared in over a dozen films in small roles. From Wikipedia, the free encyclopedia
Filmography

The Lady from Shanghai
as Captain of Yacht Circe (uncredited)
The Lady from Shanghai
as Captain of Yacht Circe (uncredited)

Soldiers and Women
as Pvt. Delehanty
Soldiers and Women
as Pvt. Delehanty
The Little Savage
as Norton
The Little Savage
as Norton
The One Man Dog
as Larry
The One Man Dog
as Larry
The Vagabond Cub
as Bob McDonald
The Vagabond Cub
as Bob McDonald

The Circus Kid
as Tad
The Circus Kid
as Tad

Crooks Can't Win
as Danny Malone
Crooks Can't Win
as Danny Malone

The Swift Shadow
as Jim
The Swift Shadow
as Jim
The Boy Rider
as Terry McNeil
The Boy Rider
as Terry McNeil
Breed of Courage
as Alan Haliday
Breed of Courage
as Alan Haliday