Which of the following actors has only been in a Quentin Tarantino directed film once?

The answer is John Travolta because he has only been in a Quentin Tarantino-directed film once, which is "Pulp Fiction" in 1994. Travolta played the iconic role of Vincent Vega in the film, which garnered him critical acclaim and earned him an Academy Award nomination. Unlike other actors, such as Samuel L. Jackson or Uma Thurman, who have appeared in multiple Tarantino films, Travolta's collaboration with the acclaimed director has been limited to this highly influential and widely acclaimed film.