Nathanial Johnston

 is a Minor character featured in Red Dead Redemption.

Background
Nathaniel Johnston is a qualified Physician. He owns the Doctor's Office in Armadillo, where he sells numerous medical items. He has a relative, Judith Johnston, buried in Coot's Chapel.

Interactions
When John Marston is shot in the rib by one of Bill Williamson's men, Bonnie MacFarlane, along with Amos, takes him to Doctor Johnston in Armadillo. Johnston removes the bullet from John and bandages the wound. According to Bonnie MacFarlane, he said John would be fine as soon as he saw he wasn't dead.

Sometime after John Marston had recovered, John and Bonnie returned to Armadillo. There, Johnston gave John some Medicine, previously paid for by Bonnie. Here after, Dr. Johnston is always available in Armadillo, where Marston can purchase medical supplies.

Trivia

 * He has exactly the same character model as Clyde Garrison, but with one exception: Johnston's hat is black instead of white. He also shares the a character head with Hal Pollard.
 * He and Clyde Garrison bear a striking resemblence to the Daniel Plainview character from the movie 'There Will Be Blood', played by Daniel-Day Lewis.
 * He may comment while John walks into his store about getting a bullet removed from his leg, despite the fact that John walks perfectly and suffers from no wounds, as far as anyone can tell.
 * According to Bonnie MacFarlane, Nathaniel is the doctor who saved John Marston's life.
 * In an ad in The Blackwater Ledger, Johnston claims that Chewing Tobacco has "wonderful health benefits".