Richard Powell (Truck Driver) and Alphonse Martell (Waiter) are in studio records/casting call lists for their roles, but they did not appear or were not identifiable in the movie.
Edwin Knopf, who wrote the original story for "The Wedding Night," was a close friend of F. Scott Fitzgerald and based the characters played by Gary Cooper and Helen Vinson on Scott and Zelda Fitzgerald.
Gary Cooper hated his co-star, Anna Sten, so much that behind her back he would refer to her as "Anna Stench."