Gil
Gil is a screenwriter in Hollywood. He's been financially successful for years, but has found himself to be creatively dull. Now he is seeking to finish his very first novel but finding it hard to get through it and finds little support from his fiancé and her parents as they vacation together in Paris. Gil then goes on a time traveling journey into the Golden Era of Paris in the 1920s as he someone is able to enter this magical time.
Inez
Inez is engaged to Gil, and they are vacationing with her affluent and conservative parents in Pars. Inez is not one to encourage Gil's imagination as she prefers the finer things in life and is perfectly content with her husband being a Hollywood screenwriter, or more in fact like Paul the man whom she's having an affair with.
Zelda Fitzgerald
Wife of famed author F. Scott, Zelda meets Gil during a party and introduces him to all of her friends. She is a social link for Gil while he is immersed in the Paris of 1920s throughout the film.
Ernest Hemingway
The infamous writer meets Gil while drinking one night in the 1920s era Paris. He is a man's man who is constantly in search of doing something that makes him a man and continually conceptualizing the breadth and depth of his manliness in monologues to Gil.
Gertrude Stein
Stein is the famed America novelist, poet, playwright and art collector. She introduces Gil to Picasso and ultimately to Adriana, Picasso's muse who becomes a woman he admires dearly and falls in love with during the 1920s era of his journey.
John
John is Inez's father. He is an affluent, white, conservative man married to Helen. He doesn't like Gil and even hires a private investigator to follow him while they are all in Paris on vacation. But the investigator is never heard from again as he gets stuck in a time warp.